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Interpretations of Quantum Mechanics with Ruth E. Kastner
 
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Ruth Kastner, PhD, is a philosopher exploring the foundations of physics. She is on the faculty of the physics department at the State University of New York at Albany. She is also a research associate at the University of Maryland. She is author of The Transactional Interpretation of Quantum Mechanics: The Reality of Possibility and also Understanding Our Unseen World: Solving Quantum Riddles. Here she points out that there are several interpretations of quantum mechanics that are very different from each other. She notes that there are many disagreements about the interpretation of the interpretations. She reviews the perspectives of great physicists such as Neils Bohr, Max Born, Ludwig Boltzmann, and David Bohm. She briefly describes the lesser known “transactional interpretation”. Then she focuses on the philosophical status of the crucial distinction between empirical and sub-empirical reality. New Thinking Allowed host, Jeffrey Mishlove, PhD, is author of The Roots of Consciousness, Psi Development Systems, and The PK Man. Between 1986 and 2002 he hosted and co-produced the original Thinking Allowed public television series. He is the recipient of the only doctoral diploma in "parapsychology" ever awarded by an accredited university (University of California, Berkeley, 1980). He is a past vice-president of the Association for Humanistic Psychology; and is the recipient of the Pathfinder Award from that Association for his contributions to the field of human consciousness. He is also past-president of the non-profit Intuition Network, an organization dedicated to creating a world in which all people are encouraged to cultivate and apply their inner, intuitive abilities. (Recorded on August 23, 2016)
Dan Hooper: Philosophy Meets Quantum Mechanics
 
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Scientists agree that quantum mechanics is an incredibly successful theory, making accurate predictions for a huge variety of phenomena. However, there is much less consensus regarding the question of what this theory means about the universe. Does quantum mechanics imply the existence of many worlds? Is there a special role that is played by consciousness? Dr. Hooper discusses the various philosophical implications of this rather bizarre and incredible theory. 2015. Available on DVD at: http://questbooks.com/index.php?route=product/product&product_id=2862&search=Philosophy+Meets+Quantum+Mechanics&description=true&category_id=59&sub_category=true
Views: 35993 Theosophical Society
The Nature of Probability & The Many-Worlds Interpretation of Quantum Mechanics
 
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In this talk, David Wallace discusses the notion of probability and some of the philosophical interpretations and problems surrounding it. After distinguishing between subjective and objective probability, he goes on to discuss the possible basis of probability in the world. He then discusses how we can make sense of probability in the Many-Worlds Interpretation (MWI) of quantum mechanics. The MWI holds that quantum theory--our best current theory of physics--is correctly understood as claiming that there are many worlds that exist in parallel to our own and which branch constantly off our own. The existence of the other worlds makes it possible to make sense of physics without action-at-a-distance, objective randomness, or any strange role for "observer" or "consciousness". These lectures discuss this interpretation of quantum mechanics and what would follow from its being the correct one. This is from Oxford. The first talk can be found here: https://www.youtube.com/watch?v=2OoRdyn2M9A
Views: 9988 Philosophy Overdose
The Arrow of Time & The Many Worlds Interpretation of Quantum Mechanics
 
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In his second talk, Harvey Brown asks why real-world events always proceed in the direction of increasing entropy, even though the laws of physics don’t require it. The Many Worlds Interpretation (MWI) of quantum mechanics holds that quantum theory - our best current theory of physics - is correctly understood as claiming that there are many worlds that exist in parallel to our own and which branch constantly off our own. The existence of the other worlds makes it possible to make sense of physics without action-at-a-distance, objective randomness, or any strange role for "observer" or "consciousness". These lectures discuss this interpretation of quantum mechanics and what would follow from its being the correct one. https://www.youtube.com/playlist?list=PLBHxLhKiPKxDqZsO2U_jEKZJ--bodaf7v
Views: 10587 Philosophy Overdose
The Emergent Multiverse: The Plurality of Worlds - Quantum Mechanics
 
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David Wallace examines the justification for interpreting the superposition states as multiplicities. This is the first talk on the Many Worlds Interpretation (MWI) of quantum mechanics. The MWI holds that quantum theory - our best current theory of physics - is correctly understood as claiming that there are many worlds that exist in parallel to our own and which branch constantly off our own. The existence of the other worlds makes it possible to make sense of physics without action-at-a-distance, objective randomness, or any strange role for "observer" or "consciousness". These lectures discuss this interpretation of quantum mechanics and what would follow from its being the correct one. The second talk can be found here: https://www.youtube.com/watch?v=8turL6Xnf9U
Views: 9255 Philosophy Overdose
The Many-Worlds Interpretation of Quantum Mechanics
 
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Dr. David Wallace briefly discusses the many worlds interpretation of quantum mechanics and why it's the most straightforward interpretation of the theory as a theory about the universe. This is from Oxford University.
Views: 7589 Philosophy Overdose
Brian Cox explains quantum mechanics in 60 seconds - BBC News
 
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Subscribe to BBC News www.youtube.com/bbcnews British physicist Brian Cox is challenged by the presenter of Radio 4's 'Life Scientific', Jim Al-Khalili, to explain the rules of quantum mechanics in just a minute. Brian succeeds; while conceding that the idea that everything is inherently probabilistic, is challenging. Even Einstein found it difficult. http://www.bbc.co.uk/programmes/b04hvx9z Subscribe to BBC News HERE http://bit.ly/1rbfUog Check out our website: http://www.bbc.com/news Facebook: http://www.facebook.com/bbcworldnews Twitter: http://www.twitter.com/bbcworld Instagram: http://instagram.com/bbcnews
Views: 1066372 BBC News
Quantum Mechanics - Part 1: Crash Course Physics #43
 
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What is light? That is something that has plagued scientists for centuries. It behaves light a wave... and a particle... what? Is it both? In this episode of Crash Course Physics, Shini introduces to the idea of Quantum Mechanics and how it helps us understand light. Also, there's this thing called the ULTRAVIOLET CATASTROPHE! Want more Crash Course in person? We'll be at NerdCon: Nerdfighteria in Boston on February 25th and 26th! For more information, go to http://www.nerdconnerdfighteria.com/ *** Get your own Crash Course Physics mug from DFTBA: http://store.dftba.com/products/crash... The Latest from PBS Digital Studios: https://www.youtube.com/playlist?list... -- Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios -- Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashC... Twitter - http://www.twitter.com/TheCrashCourse Tumblr - http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: http://www.patreon.com/crashcourse CC Kids: http://www.youtube.com/crashcoursekids
Views: 1014833 CrashCourse
Finally I understand quantum mechanics
 
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Julia explains what she learned about quantum mechanics (and in particular the Many Worlds interpretation) from a chat with physicist Sean Carroll. Check out the episode of the podcast I'm referencing here, at: http://rationallyspeakingpodcast.org/show/rs133-sean-carroll-on-the-many-worlds-interpretation-is-prob.html (And read more about me at http://juliagalef.com)
Views: 165874 Julia Galef
The many worlds of quantum physics | Robert Wright & David Wallace
 
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1:29 The challenge of interpreting quantum physics 10:26 The many-worlds interpretation 21:10 At what moments do new worlds appear? 27:54 Quantum physics and free will 33:52 The multiverse and you 39:51 Why you (or one of you) may never die 49:15 Quantum entanglement holds the world together Watch this conversation on MeaningofLife.tv: http://meaningoflife.tv/videos/38327 Robert Wright (Bloggingheads.tv, The Evolution of God, Nonzero) and David Wallace (University of Southern California, The Emergent Multiverse) Recorded on February 23, 2017 Subscribe to the MeaningofLife.tv YouTube channel: https://goo.gl/J9BHA4 Follow us on Twitter: https://twitter.com/MeaningLifeTV Like us on Facebook: https://www.facebook.com/MeaningofLife.tv/
Views: 9123 MeaningofLife.tv
Matthew Pusey: Is QBism 80% complete, or 20%?
 
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I will outline two views on the status of QBism, one that seems to be presumed in most discussions of the subject, and the other that I read in (or read into!) the writings of QBism’s originators. The former view is that QBism has already provided the main elements of an information-theoretic interpretation of quantum theory, perhaps with a few technical questions on SIC-POVMs and the like remaining. The latter view is eloquently summarised by Fuchs’ statement that “quantum theory is just the start of our adventure. The quantum world is still ahead of us.” I will argue that the QBism under the former view is irreparably linked to dubious ideas from the philosophy of mind (though perhaps not the ideas you expect), whilst QBism under the latter view is a promising research programme. Matthew Pusey, Perimeter Institute for Theoretical Physics Information-Theoretic Interpretations of Quantum Mechanics: 2016 Annual Philosophy of Physics Conference June 11-12, 2016 Visit http://philphysics.uwo.ca for conference details. Visit the Rotman website for more information on applications, events, project descriptions and openings. http://www.rotman.uwo.ca Follow The Rotman Institute on Twitter: https://twitter.com/rotmanphilo Like The Rotman Institute on Facebook: https://www.facebook.com/RotmanInstitute Subscribe to our channel: https://www.youtube.com/user/rotmanphilosophy
Philosophical Insight - Quantum Physics
 
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The PPCC Philosophy Department discusses quantum physics and what that might mean.
Views: 26 PPCC-TV
Quantum physics and consciousness
 
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According to this theory, nothing really happens in physical world. Physical world is just a manifestation of the our consciousness. It seems that ancient Indian yogis have always known this. They have always believed in supreme consciousness which runs cosmos.
Quantum Mechanics: Schrödinger's discovery of the shape of atoms
 
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Ok physics time is over. Time for silly twittering! https://twitter.com/Scribblegoose General theme I think it could be useful if I restate the central message of the video here, for clarity: The shape of hydrogen (and all atoms) is made up by the way the electron spreads itself, as a wave function. This wave function is a blobby shape, and often looks like spheres and donuts put next to one another. The wave function is the electron itself, in a sense. When you don't disturb it, the electron looks like that. When you do disturb it, it becomes a single hard point, and the blobby shape vanishes. Specific notes and clarifications: Schrödinger didn't really emphasize the shape of atoms in his discovery, instead everyone considered the big discoveries to be: 1) The Schrödinger equation 2) The total hydrogen wave function 3) The energy levels of hydrogen But the shape of hydrogen follows immediately from the total hydrogen wave function, and since we want to look at those shapes, I figured I should focus on them in this vid. At 1:40 I talk about the planetary model of the atom. There were actually two variations of the planetary model, the Rutherford model and the Bohr model. It was the Bohr model that made these 'very nice predictions' I mention, it gave a relation for the energy levels of hydrogen. It couldn't explain where these energy levels were coming from though, it took Schrödinger's discovery of the total hydrogen wave function to explain their origin. There were also some other atomic models before the planetary model, for instance the cubic model, the Saturnian model and the plum-pudding model. They are now relevant only in a historic sense. At 2:03 I simplify the discovery of wave-particle duality in electrons a bit. De Broglie was indeed the first to propose it for electrons, but he was building on previous work by Einstein. Einstein had made a formal definition of wave-particle duality in photons (light), and De Broglie was extending it to matter. The four situations I list are also more of a hindsight-view that justify De Broglie's pitch. They are: Compton scattering between electrons and photons, the photographic-plate part of the double slit experiment, the crystal-grate part of the double slit experiment and electron free-particle behavior. At 4:13, I draw eight orbitals of hydrogen as an example, but there are more. Strictly speaking there's an infinite amount of orbitals, of which about the first 80 are important for chemistry and physics. I picked these eight to draw simply because they make nice examples of which shapes hydrogen can take. Many of those 80 orbitals actually look rather alike. Often you'll have several orbitals that have the same shape, just flipped 90°, or with an additional set of small blobs nested within the big blobs. The spotty picture I draw at 5:38 of the thousand positions of the electron is somewhat simplified. I draw every position inside the three blobs -- but this is not quite correct. The blobs are what are known as "90%-probability surfaces". Basically, you have a 90% chance of finding the electron within these blobs. The remaining 10% of sightings will fall somewhat outside the blobs. Like any wave, the electron wave function decays slowly and stretches out for quite a while. I didn't want to draw these extra 10%, because I thought it would be confusing. The argument still holds though: There really is an area in between the blobs where you cannot encounter the electron, called a nodal plane. At 5:44 I refer to the electron's wave function as 'probability wave function'. This is a slip of the tongue on my part, the phrase is either 'probability distribution' or 'wave function'. There is also a subtle difference between those two phrases, the probability distribution is the absolute squared of the wave function: P = |Ψ|². But, for the purpose of the video, they are both 'blobby shapes'. The '40 years of heated debate' I mention at 6:09 was about the interpretation of quantum mechanics, and the philosophical implications. Things like teleportation, determinism and statistical randomness were discussed, leading to several different interpretations, the main ones of which were: The Copenhagen interpretation, the Many Worlds interpretation and Realism. Einstein (who favored Realism) strongly disliked the statistical, random nature of the wave function, and he summed it up in a famous statement: "I, for one, am convinced that God does not throw dice". His stance was ultimately disproven in a series of experiments that proved Bell's theorem. Noooo no more room for notes :(, I have the final notes here:
Views: 512202 Scribblegoose
The Many-Worlds Interpretation of Quantum Mechanics by David Wallace
 
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The Many-Worlds Interpretation of Quantum Mechanics by David Wallace, Oxford University, at the University of California, Santa Cruz Institute for the Philosophy of Cosmology June 28, 2013
Views: 7360 Phil Cosmogroup
Quantum Physics & Madhyamika Philosophy-1
 
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Quantum Physics & Madhyamika Philosophy- English Language Nov 12th-13. please enjoy http://livestream.com/DalaiLamaEnglish/quantum?origin=event
Quantum Physics & Madhyamika Philosophy-2
 
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Quantum Physics & Madhyamika Philosophy- English Language Nov 12th-13. please enjoy http://livestream.com/DalaiLamaEnglish/quantum?origin=event
Science Saturday: Problems in Quantum Mechanics | Sean Carroll & David Albert [Science Saturday]
 
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01:05 Defining Quantum Mechanics 18:20 Why the Schrodinger equation seems crazy... 27:03 ...and a few possible ways to make it seem sane 36:42 Sean on the many-worlds interpretation of Quantum Mechanics 40:42 David attacks the many-worlds interpretation 59:17.1 Quantum Mechanics and free will Sean Carroll (Cosmic Variance, California Institute of Technology) and David Albert (Columbia University) Join the conversation on Bloggingheads.tv: http://bloggingheads.tv/videos/1728 Recorded on July 22, 2008 Subscribe to the Bloggingheads.tv YouTube channel: https://goo.gl/ccLFDY Follow us on Twitter: https://twitter.com/bloggingheads Like us on Facebook: https://www.facebook.com/bloggingheads/ Follow our RSS feed: https://bloggingheads.tv/videos/feed?format=audio
Views: 13241 Bloggingheads.tv
Information-Theoretic Interpretations of Quantum Mechanics: commentary and discussion
 
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Information-Theoretic Interpretations of Quantum Mechanics was a two day workshop inspired by Jeffrey Bub’s recently published book Bananaworld: Quantum Mechanics for Primates (Oxford University Press). The workshop brought together diverse views on issues raised by and related to Professor Bub’s work on developing an information-theoretic interpretation of quantum theory. The workshop consisted of six sessions, one of which was this special session, which included a distinguished panel of commentators who presented their views on Professor Bub’s interpretation. Allen Stairs, University of Maryland, Philosophy Leah Henderson, University of Groningen, Philosophy Matthew Leider, Chapman University, Physics Information-Theoretic Interpretations of Quantum Mechanics: 2016 Annual Philosophy of Physics Conference June 11-12, 2016 Visit http://philphysics.uwo.ca for conference details. Visit the Rotman website for more information on applications, events, project descriptions and openings. http://www.rotman.uwo.ca Follow The Rotman Institute on Twitter: https://twitter.com/rotmanphilo Like The Rotman Institute on Facebook: https://www.facebook.com/RotmanInstitute Subscribe to our channel: https://www.youtube.com/user/rotmanphilosophy
A Critique of Bohmian Mechanics
 
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To help support this ministry click here: http://www.patreon.com/inspiringphilosophy This is a video presenting objections to Bohmian Mechanics. I argue from skeptics of this interpretation in physics, it is an ad hoc interpretation and doesn't compete with the standard and orthodox interpretation. Sources: https://plato.stanford.edu/entries/qm-bohm/ https://arxiv.org/abs/1404.6588 https://arxiv.org/abs/1303.2719 https://www.youtube.com/watch?v=GdqC2bVLesQ https://motls.blogspot.com/2013/07/bohmian-mechanics-ludicrous-caricature.html https://arxiv.org/abs/gr-qc/0205108 Einstein, Relativity and Absolute Simultaneity - William Lane Craig $ Quentin Smith https://philpapers.org/rec/ALLWIB https://arxiv.org/abs/1410.2014 https://link.springer.com/chapter/10.1007/978-94-015-8656-6_13 https://arxiv.org/abs/quant-ph/0403094 https://arxiv.org/abs/quant-ph/9812059 https://arxiv.org/abs/quant-ph/0312059
Views: 10689 InspiringPhilosophy
A new concept of time for a new Interpretation of Quantum Mechanics
 
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This is the most intuitive and logical Interpretation of Quantum Mechanics you will ever find. The Universe is explained as a process of continuous energy exchange, continuous creation. The electromagnetic force, the strong nuclear force and the weak nuclear force all have their part to play within this process. In such a process the mathematics of quantum mechanics represents the physics of ‘time’ as a geometrical process with classical physics representing processes over a period of time as in Newton’s differential equations. What we see and feel as ‘time’ is formed by the spontaneous absorption and emission of photon energy. In such a theory we would have an emergent future unfolding with each photon electron coupling or dipole moment. The wave-particle duality of light and matter in the form of electrons is forming a blank canvas that we can interact with! We are always in ‘the moment of now’ in the centre of our own reference frame as an interactive part of this process! I will place links below to aspects of this theory that are not covered in this video. Quantum Entanglement explained by time as an emergent property https://www.youtube.com/watch?v=lBvuPQOkE8I The Delayed Choice Quantum Eraser Experiment Explained https://www.youtube.com/watch?v=IxATECCyya0 EPR experiment explained with the future as an emergent property https://www.youtube.com/watch?v=Itd60JbbxGI The Polarization Paradox with visible light and microwaves Quantum Mechanics Explained https://www.youtube.com/watch?v=R4HFmqjKln4 A Reason for 137 the Fine Structure Constant of Quantum Mechanics https://www.youtube.com/watch?v=A5ZOjO8X5aY One equation (E=ˠM˳C²)∞ one universal process of energy exchange https://www.youtube.com/watch?v=6FBCinyy_4o
What is "Orthodox" Quantum Mechanics?   David Wallace ALS, Nov. 18, 2016
 
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David Wallace of the University of Southern California speaks at our Annual Lecture Series. Abstract: What is called "orthodox'' quantum mechanics, as presented in standard foundational discussions, relies on two substantive assumptions --- the projection postulate and the eigenvalue-eigenvector link --- that do not in fact play any part in practical applications of quantum mechanics. I argue for this conclusion on a number of grounds, but primarily on the grounds that the projection postulate fails correctly to account for repeated, continuous and unsharp measurements (all of which are standard in contemporary physics) and that the eigenvalue-eigenvector link implies that virtually all interesting properties are maximally indefinite pretty much always. I present an alternative way of conceptualising quantum mechanics that does a better job of representing quantum mechanics as it is actually used, and in particular that eliminates use of either the projection postulate or the eigenvalue-eigenvector link, and I reformulate the measurement problem within this new presentation of orthodoxy.
Cosmology and Quantum Theory: the Relational View (Carlo Rovelli)
 
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Lecture from the mini-series "Cosmology & Quantum Foundations" from the "Philosophy of Cosmology" project. A University of Oxford and Cambridge Collaboration.
Views: 17690 PhilosophyCosmology
Schrödinger's cat: A thought experiment in quantum mechanics - Chad Orzel
 
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View full lesson: http://ed.ted.com/lessons/schrodinger-s-cat-a-thought-experiment-in-quantum-mechanics-chad-orzel Austrian physicist Erwin Schrödinger, one of the founders of quantum mechanics, posed this famous question: If you put a cat in a sealed box with a device that has a 50% chance of killing the cat in the next hour, what will be the state of the cat when that time is up? Chad Orzel investigates this thought experiment. Lesson by Chad Orzel, animation by Agota Vegso.
Views: 2839558 TED-Ed
The 1st Ockham Debate - The Problem of Quantum Measurement - 13th May 2013
 
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Professor Simon Saunders, Professor of Philosophy of Physics and Fellow of Linacre College, Oxford vs. Professor James Binney FRS, Professor of Physics, Director of the Rudolf Peierls Centre for Theoretical Physics, and Fellow of Merton College, Oxford. Quantum mechanics is part deterministic, part probabilistic. According to the 'standard' quantum theory, states evolve with certainty between measurements, but 'collapse' randomly when we measure them. But what is measurement? And why does it (appear to) enjoy a privileged position in the theory? The measurement problem has been one of the hottest topics in physics ever since quantum theory was proposed and, despite much progress, remains so today. This Occam meeting for the first time offered the different perspectives of not one but two expert speakers: • Prof. Saunders is a leading proponent of the 'many worlds' interpretation of quantum mechanics, which argues that the Universe we see is emergent, and constantly subject to 'splitting' - including during measurements. • Prof. Binney advocates an alternative programme, suggesting that we should gain insight into measurement by better understanding the dynamics of the system's interactions with the measuring apparatus. The debate took place on Monday 13th May 2013 in the T.S. Eliot Theatre at Merton College, Oxford. It was moderated by Dr Alan Barr and Dr Ralf Bader, and introduced by Dr Alexander Schekochihin - all three are Fellows of Merton College.
Views: 28161 Merton College, Oxford
A Critique of the Many Worlds Interpretation
 
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To help support this ministry click here: http://www.patreon.com/inspiringphilosophy This is a video presenting the objections to the Many Worlds Interpretation of Quantum Mechanics. I argue from skeptics in physics, it is not a complete interpretation and doesn't compete with stand interpretations. Music: Two Steps from Hell - Love & Loss https://www.youtube.com/watch?v=FlfAOSYOs4E Mervin Mathew - Battle Begins https://www.youtube.com/watch?v=RGxLWcN06n8 Sources: http://arxiv.org/abs/gr-qc/9703089 http://plato.stanford.edu/entries/qm-manyworlds/ http://www.physics.wustl.edu/alford/many_worlds_FAQ.html http://arxiv.org/abs/1106.4481 http://www.newscientist.com/article/dn20600-quantum-magic-trick-shows-reality-is-what-you-make-it.html http://arxiv.org/pdf/quant-ph/0011086.pdf http://arxiv.org/abs/0905.0624 http://arxiv.org/abs/quant-ph/0110148 http://arxiv.org/abs/quant-ph/0312059 http://arxiv.org/abs/quant-ph/0103043 http://arxiv.org/abs/1111.2189 http://arxiv.org/pdf/0801.0337.pdf
Views: 42565 InspiringPhilosophy
The Physics and Philosophy of Time - with Carlo Rovelli
 
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From Boltzmann to quantum theory, from Einstein to loop quantum gravity, our understanding of time has been undergoing radical transformations. Carlo Rovelli brings together physics, philosophy and art to unravel the mystery of time. Subscribe for regular science videos: http://bit.ly/RiSubscRibe Watch the Q&A: https://youtu.be/FIgYmNYXMas Time is a mystery that does not cease to puzzle us. Philosophers, artists and poets have long explored its meaning while scientists have found that its structure is different from the simple intuition we have of it. Time flows at a different speed in different places, the past and the future differ far less than we might think, and the very notion of the present evaporates in the vast universe. Carlo Rovelli is a theoretical physicist who has made significant contributions to the physics of space and time. He has worked in Italy and the US, and is currently directing the quantum gravity research group of the Centre de physique théorique in Marseille, France. His books 'Seven Brief Lessons on Physics' and 'Reality Is Not What It Seems' are international bestsellers translated into forty-one languages. This talk and Q&A was filmed in the Ri on 30 April 2018. --- Thank you for our Patreon supporters who help us make more videos like this: Alan Delos Santos, Ashok Bommisetti, Greg Nagel, Lester Su, Rebecca Pan and Will Knott. --- The Ri is on Patreon: https://www.patreon.com/TheRoyalInstitution and Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and Tumblr: http://ri-science.tumblr.com/ Our editorial policy: http://www.rigb.org/home/editorial-policy Subscribe for the latest science videos: http://bit.ly/RiNewsletter
Views: 252216 The Royal Institution
Quantum Mechanics Transactional Iterpretation Explained
 
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John G. Cramer explains transactional interpretation of quantum mechanics. This video has been edited to remove the audience interruptions. Professor Cramer's book from Amazon https://www.amazon.com/Quantum-Handshake-Entanglement-Nonlocality-Transactions/dp/3319246402 PDF of slides used: http://ssi.org/wp-content/uploads/2018/02/ssiapw2017_05_cramer.pdf Original uncut video with interruptions https://youtu.be/Ri6tfgF_UUM
Views: 549 SiberianSwordsman
Quantum Theory - Full Documentary HD
 
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Check: https://youtu.be/Hs_chZSNL9I The World of Quantum - Full Documentary HD http://www.advexon.com For more Scientific DOCUMENTARIES. Subscribe for more Videos... Quantum mechanics (QM -- also known as quantum physics, or quantum theory) is a branch of physics which deals with physical phenomena at nanoscopic scales where the action is on the order of the Planck constant. It departs from classical mechanics primarily at the quantum realm of atomic and subatomic length scales. Quantum mechanics provides a mathematical description of much of the dual particle-like and wave-like behavior and interactions of energy and matter. Quantum mechanics provides a substantially useful framework for many features of the modern periodic table of elements including the behavior of atoms during chemical bonding and has played a significant role in the development of many modern technologies. In advanced topics of quantum mechanics, some of these behaviors are macroscopic (see macroscopic quantum phenomena) and emerge at only extreme (i.e., very low or very high) energies or temperatures (such as in the use of superconducting magnets). For example, the angular momentum of an electron bound to an atom or molecule is quantized. In contrast, the angular momentum of an unbound electron is not quantized. In the context of quantum mechanics, the wave--particle duality of energy and matter and the uncertainty principle provide a unified view of the behavior of photons, electrons, and other atomic-scale objects. The mathematical formulations of quantum mechanics are abstract. A mathematical function, the wavefunction, provides information about the probability amplitude of position, momentum, and other physical properties of a particle. Mathematical manipulations of the wavefunction usually involve bra--ket notation which requires an understanding of complex numbers and linear functionals. The wavefunction formulation treats the particle as a quantum harmonic oscillator, and the mathematics is akin to that describing acoustic resonance. Many of the results of quantum mechanics are not easily visualized in terms of classical mechanics. For instance, in a quantum mechanical model the lowest energy state of a system, the ground state, is non-zero as opposed to a more "traditional" ground state with zero kinetic energy (all particles at rest). Instead of a traditional static, unchanging zero energy state, quantum mechanics allows for far more dynamic, chaotic possibilities, according to John Wheeler. The earliest versions of quantum mechanics were formulated in the first decade of the 20th century. About this time, the atomic theory and the corpuscular theory of light (as updated by Einstein)[1] first came to be widely accepted as scientific fact; these latter theories can be viewed as quantum theories of matter and electromagnetic radiation, respectively. Early quantum theory was significantly reformulated in the mid-1920s by Werner Heisenberg, Max Born and Pascual Jordan, (matrix mechanics); Louis de Broglie and Erwin Schrödinger (wave mechanics); and Wolfgang Pauli and Satyendra Nath Bose (statistics of subatomic particles). Moreover, the Copenhagen interpretation of Niels Bohr became widely accepted. By 1930, quantum mechanics had been further unified and formalized by the work of David Hilbert, Paul Dirac and John von Neumann[2] with a greater emphasis placed on measurement in quantum mechanics, the statistical nature of our knowledge of reality, and philosophical speculation about the role of the observer. Quantum mechanics has since permeated throughout many aspects of 20th-century physics and other disciplines including quantum chemistry, quantum electronics, quantum optics, and quantum information science. Much 19th-century physics has been re-evaluated as the "classical limit" of quantum mechanics and its more advanced developments in terms of quantum field theory, string theory, and speculative quantum gravity theories. https://www.youtube.com/watch?v=ZsVGut7G-dU quantum solace, quantum world, #quantum
Views: 7058886 Advexon Science Network
The Invisible Reality: The Wonderful Weirdness of the Quantum World
 
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Proposed a century ago to better explain the mind-bending behavior of the smallest constituents of the universe, quantum theory has implications far beyond the atom. This rich set of laws has applications both practical and extraordinary — from the technology that has revolutionized modern life to the possibility of parallel worlds. Our audience joined Alan Alda as he accompanied Brian Greene, Nobel Laureate William Phillips and other leading thinkers at the vanguard of quantum research on an accessible multimedia exploration of the astounding weirdness of the quantum world. This program is part of The Big Idea Series, made possible with support from the John Templeton Foundation. The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future. Subscribe to our YouTube Channel for all the latest from WSF. Visit our Website: http://www.worldsciencefestival.com/ Like us on Facebook: https://www.facebook.com/worldsciencefestival Follow us on twitter: https://twitter.com/WorldSciFest Original Program date: May 30, 2008 MODERATOR: Alan Alda PARTICIPANTS: David Z. Albert, Brian Greene, Max Tegmark, William Phillips Brian Greene Introduces quantum physics 00:14 A throw of the dice dance performance. 21:15 Participant Introductions. 22:54 Are probability waves real? 25:55 Brian Greene on the accuracy of quantum mechanics 37:30 Einstein says that nothing is random. 47:56 Quantum entanglement 51:10 Not enough information in the universe for a 400 bit quantum computer 01:09:41 Is there something missing from Quantum Physics? 01:22:15
Views: 1154755 World Science Festival
Michio Kaku - Matrix Philosophy (Quantum Physics)
 
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Michio Kaku - Matrix Philosophy (Quantum Physics) . . . WORLD'S NEW TV CHANNEL "A9" WILL CHANGE YOUR POINT OF VIEW TO LIFE On A9, only truthful and mind dependant shows are broadcasted We don't have a high raiting concern. That's why without the need of insincere -synthetic- shows, we broadcast shows that manifests vital truths about life that concerns humanity. A9, has been set up to build up love, justice and solidarity among people and our main aim is being pioneer for peace all over the world by using the unifying policy of Turkish Islamic Union. In every show you watch you will feel this policy clearly. A9 tails scientific news and will relay them straightforward without deflecting the truth by ideological concerns. In this you will realise magnificent truths that you have never thought before. A9 advocates that; morality of Turkish Islamic Union and solidarity that comes by will maximize happiness and prosperity in the whole over the world in a way that have never seen before. We, will prepare the best magnificent future of the world by the shows we broadcast. A single moment, A single sentence you hear, A single frame you see and A single subject you ponder on, on Channel A9 YOUR POINT OF VIEW WILL CHANGE! Click to subscribe to my channel : https://www.youtube.com/channel/UCCS6... Web Sitemiz; http://bilimadinahersey.com Facebook; https://www.facebook.com/BilimAdinaHersey/ Twitter: https://twitter.com/BilimAdinaHerse
Views: 2752 Bilim Adına Herşey
Philosophy of Quantum Physics, No BS | 1. Stern-Gerlach Exp.
 
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A serious philosophical discussion about quantum physics without the new age crap. Part 1 - The Stern-Gerlach Experiment, wherein we introduce the series and get an idea as to why classical mechanics is out the window. The book I'm using is R.I.G. Hughes, 'The Structure and Interpretation of Quantum Mechanics'
Views: 156293 denito9474
Quantum Mechanics Debunks Materialism - Part 1
 
01:39:13
Quantum Mechanics - The radical metaphysical and epistemological implications of QM which even most hard-nosed scientists fail to understand. The Ultimate Life Purpose Course - Create Your Dream Career: https://www.actualized.org/life-purpose-course Leo Reviews Top 200 Self Help Books https://www.actualized.org/books Leo's Blog: https://www.actualized.org/insights Actualized.org Forum https://www.actualized.org/forum/ Contribute subtitles & translations for any Actualized.org video, watch how: https://youtu.be/b9cKgwnFIAw Disclaimer: Advice provided without warranty. This is NOT medical advice. By watching & applying this advice you agree to take 100% responsibility for all consequences.
Views: 76172 Actualized.org
Quantum Reality: Space, Time, and Entanglement
 
01:32:49
Brian Greene moderates this fascinating program exploring the fundamental principles of Quantum Physics. Anyone with an interest in science will enjoy this thought-provoking and highly entertaining show. PARTICIPANTS: Mark Van Raamsdonk, Gerard ’t Hooft, David Wallace, Birgitta Whaley MODERATOR: Brian Greene Original program date: JUNE 2, 2017 WATCH THE TRAILER: https://youtu.be/JxhfU_fvlAM WATCH THE LIVE Q&A WITH MARK VAN RAAMSDONK: https://youtu.be/GvRNV6Gmmzk Ninety years after the historic double-slit experiment, the quantum revolution shows no sign of slowing. Join a vibrant conversation with renowned leaders in theoretical physics, quantum computation, and philosophical foundations, focused on how quantum physics continues to impact understanding on issues profound and practical, from the edge of black holes and the fibers of spacetime to teleportation and the future of computers. MORE INFO ABOUT THE PROGRAM AND PARTICIPANTS: https://www.worldsciencefestival.com/programs/computational-creativity/ This program is part of the Big Ideas Series, made possible with support from the John Templeton Foundation. - Subscribe to our YouTube Channel for all the latest from WSF - Visit our Website: http://www.worldsciencefestival.com/ - Like us on Facebook: https://www.facebook.com/worldsciencefestival/ - Follow us on Twitter: https://twitter.com/WorldSciFest TOPICS: - Brian Greene's introduction to Quantum Mechanics 00:09 - Participant Introductions 03:32 - Where do we currently stand with quantum mechanics? 05:30 - Chapter One - Quantum Basics 07:48 - The Double Slit experiment 14:18 - Chapter Two - Measurement and Entanglement 26:53 - Quantum Mechanics today is the best we have 41:27 - Chapter Three - Quantum Mechanics and Black Holes 59:07 - Black holes and Hawking Radiation 01:03:56 - Chapter Four - Quantum Mechanics and Spacetime 01:15:45 - Chapter Five - Applied Quantum 01:23:36 This program was recorded live on 6/2/17 and has been edited and condensed for our YouTube channel. Watch the original full livestream here: https://youtu.be/3qQ8r-_NdZo
Views: 838754 World Science Festival
Quantum Mechanics and Cosmology: the Case for Many Worlds (Simon Saunders)
 
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Lecture from the mini-series "Cosmology & Quantum Foundations" from the "Philosophy of Cosmology" project. A University of Oxford and Cambridge Collaboration.
Views: 17203 PhilosophyCosmology
Quantum Philosophy can change your life - Law of Attraction and Power of thoughts and mind
 
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This video is not about the science of Quantum Mechanics but Philosophy based on the science of Quantum Mechanics. This video will also explain the Law of attraction and the power of thoughts and mind. Email Address [email protected] Link to the previous videos on Quantum Mechanics https://www.youtube.com/playlist?list=PLymbX6tnBLeMj5wgB7pu2CCKesFPMobbF&disable_polymer=true
Views: 87505 Strange World
Quantum Physics Explained
 
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Quantum mechanics is the branch of physics relating to the very small. It results in what may appear to be some very strange conclusions about the physical world. At the scale of atoms and electrons, many of the equations of classical mechanics, which describe how things move at everyday sizes and speeds, cease to be useful. In classical mechanics, objects exist in a specific place at a specific time. However, in quantum mechanics, objects instead exist in a haze of probability; they have a certain chance of being at point A, another chance of being at point B and so on. Three revolutionary principles Quantum mechanics (QM) developed over many decades, beginning as a set of controversial mathematical explanations of experiments that the math of classical mechanics could not explain. It began at the turn of the 20th century, around the same time that Albert Einstein published his theory of relativity, a separate mathematical revolution in physics that describes the motion of things at high speeds. Unlike relativity, however, the origins of QM cannot be attributed to any one scientist. Rather, multiple scientists contributed to a foundation of three revolutionary principles that gradually gained acceptance and experimental verification between 1900 and 1930. They are: Quantized properties: Certain properties, such as position, speed and color, can sometimes only occur in specific, set amounts, much like a dial that "clicks" from number to number. This challenged a fundamental assumption of classical mechanics, which said that such properties should exist on a smooth, continuous spectrum. To describe the idea that some properties "clicked" like a dial with specific settings, scientists coined the word "quantized." Particles of light: Light can sometimes behave as a particle. This was initially met with harsh criticism, as it ran contrary to 200 years of experiments showing that light behaved as a wave; much like ripples on the surface of a calm lake. Light behaves similarly in that it bounces off walls and bends around corners, and that the crests and troughs of the wave can add up or cancel out. Added wave crests result in brighter light, while waves that cancel out produce darkness. A light source can be thought of as a ball on a stick being rhythmically dipped in the center of a lake. The color emitted corresponds to the distance between the crests, which is determined by the speed of the ball's rhythm. Waves of matter: Matter can also behave as a wave. This ran counter to the roughly 30 years of experiments showing that matter (such as electrons) exists as particles. Other video resources https://www.youtube.com/watch?v=A6DiVspoZ1E https://www.youtube.com/watch?v=cEl-fTtP2tw https://www.youtube.com/watch?v=iVpXrbZ4bnU Articles - www.preposterousuniverse.com/eternitytohere/quantum/ http://whatis.techtarget.com/definition/quantum-theory http://www.thekeyboard.org.uk/Quantum%20mechanics.htm
Views: 713475 Cosmology Today™
Unifying the Inflationary & Quantum Multiverses (Max Tegmark)
 
01:00:03
The Cosmological Interpretation of Quantum Mechanics: Unifying the Inflationary & Quantum Multiverses Lecture from the mini-series "Cosmology & Quantum Foundations" from the "Philosophy of Cosmology" project. A University of Oxford and Cambridge Collaboration.
Views: 40611 PhilosophyCosmology
Where are the Many Worlds of Hugh Everett’s Interpretation of Quantum Mechanics
 
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Where are the many worlds of Hugh Everett’s Many Worlds Interpretation? The Many Words Theory is one of the most popular interpretations of quantum mechanics, but for many people it seems wrong that we need an infinite number of extra dimensions or parallel universes just to explain our three dimensional Universe. In the mathematics of Hugh Everett’s Many Worlds Interpretation the parallel universes are all at right-angles to each other. In this theory this represents the electric and magnetic fields always being at right-angles to each other. The light photon of quantum mechanics is the carrier of electromagnetic fields and it is time variations within magnetic fields that act as a source for electric fields and time varying electric fields is the source of magnetic fields. When one field is changing in time, then a field of the other is induced. This is an emergent process relative to the position and momentum of the objects creating the time variations the atoms themselves. The reason why this theory only needs three dimensions and one variable in the form of time is because it uses the holographic principle. This is formed by positive and negative charge forming a dynamic two dimensional boundary condition or Riemann surface. Links to sites and videos: An alternative to the Block Universe https://www.youtube.com/watch?v=mH-y_ibrNRo A reason for Cantor's mathematical infinity an artist theory. https://www.youtube.com/watch?v=sZhYeUw0cqk Pi π the Language of the Universe as in ħ = h/2π, ∆E ∆t ≥ h/2π and ∆×∆pᵪ≥h/4π https://www.youtube.com/watch?v=q9x6U2gVSHs Golden ratio and Fibonacci spiral in a new atomic theory. https://www.youtube.com/watch?v=oeM6xiYcKdg A rational reason for irrational numbers. https://www.youtube.com/watch?v=LvcNzwa-wko The symmetry of life where does it all come from? https://www.youtube.com/watch?v=ukYa-Y66qQ4 Are we just temporary waves of energy? https://www.youtube.com/watch?v=p6ELFZ6G9xs The Energy behind the Power of Thought https://www.youtube.com/watch?v=IpXVTjzY4X8 The source of gravity is energy and momentum not mass https://www.youtube.com/watch?v=hzYJyBf9DZw The Parabolas of Life in Real Time https://www.youtube.com/watch?v=qkp9LNSUuHY A Wave and Particle Explanation of Quantum Mechanics https://www.youtube.com/watch?v=_U52QGqp3zA Find this Theory on Facebook https://www.facebook.com/nick.harvey.1806 Link to my web site: http://quantumartandpoetry.blogspot.co.uk/ Link to: A new interpretation of Quantum Mechanics on Facebook https://www.facebook.com/groups/280524372113402/ Quantum Atom Theory on facebook with diagrams and scientific experimental videos: https://www.facebook.com/QuantumAtomTheory/ Art site: http://art-by-nick-harvey.blogspot.co.uk/
The Reality of Possibility with Ruth E. Kastner
 
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Ruth Kastner, PhD, is a philosopher exploring the foundations of physics. She is on the faculty of the physics department at the State University of New York at Albany. She is also a research associate at the University of Maryland. She is author of The Transactional Interpretation of Quantum Mechanics: The Reality of Possibility and also Understanding Our Unseen World: Solving Quantum Riddles. Here she describes Plato’s famous cave allegory, and suggests that it is relevant to our understanding of quantum mechanics. Specifically, she suggests that the higher dimensional mathematical formalisms, although not empirically observable, point toward very real levels of existence. To buttress her argument, she also describes the nineteenth century parable of Flatland. In quantum theory, there are the probability clouds described by the Shrödinger psi equation. At another, more subtle, but still ontologically real level, are virtual particles. New Thinking Allowed host, Jeffrey Mishlove, PhD, is author of The Roots of Consciousness, Psi Development Systems, and The PK Man. Between 1986 and 2002 he hosted and co-produced the original Thinking Allowed public television series. He is the recipient of the only doctoral diploma in "parapsychology" ever awarded by an accredited university (University of California, Berkeley, 1980). He is a past vice-president of the Association for Humanistic Psychology; and is the recipient of the Pathfinder Award from that Association for his contributions to the field of human consciousness. He is also past-president of the non-profit Intuition Network, an organization dedicated to creating a world in which all people are encouraged to cultivate and apply their inner, intuitive abilities. (Recorded on August 23, 2016)
Quantum Philosophy: Toy Theory Part 2
 
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The second in a series on the 'Toy Theory' paper: a recent research paper on quantum mechanics that is meant to argue that quantum states are nothing more than a kind of knowledge. In this video, I discuss the view opposing epistemic interpretations of quantum mechanics: ontic interpretations. QuantumRealityProject.com
Views: 74 Karl Smith
Laura Felline: Scientific explanation in information-theoretic reconstructions of quantum theory
 
01:13:56
The overall aim of this paper is to explore ways in which Axiomatic Reconstructions of Quantum Theory in terms of Information-Theoretic principles (ARQITs) could contribute to explaining and understanding quantum phenomena, as well as studying their explanatory limitations. This is also done by offering an account of the kind of explanation that axiomatic reconstructions of quantum theory may provide, and re-evaluating the epistemic status of the ARQIT program in light of this explanation. On the one hand, I argue that ARQITs can aspire at providing genuine explanations of some quantum phenomena. On the other hand, I argue that such explanations cannot rule out a mechanical quantum theory, nor make it explanatorily superfluous. Laura Felline, Roma Tre University, Philosophy Information-Theoretic Interpretations of Quantum Mechanics: 2016 Annual Philosophy of Physics Conference June 11-12, 2016 Visit http://philphysics.uwo.ca for conference details. Visit the Rotman website for more information on applications, events, project descriptions and openings. http://www.rotman.uwo.ca Follow The Rotman Institute on Twitter: https://twitter.com/rotmanphilo Like The Rotman Institute on Facebook: https://www.facebook.com/RotmanInstitute
Marissa Giustina: Significant loophole-free test of Bell’s theorem with entangled photons
 
01:16:37
Local realism is the worldview in which physical properties of objects exist independently of measurement and where physical influences cannot travel faster than the speed of light. Bell’s theorem states that this worldview is incompatible with the predictions of quantum mechanics, as is expressed in Bell’s inequalities. Previous experiments convincingly supported the quantum predictions. Yet, every experiment requires assumptions that provide loopholes for a local realist explanation. In this paper, I will discuss the recent results from my laboratory, in which we designed an experiment that closes the most significant of these loopholes simultaneously. Using a well-optimized source of entangled photons, rapid setting generation, and highly efficient superconducting detectors, we observe a violation of a Bell inequality with high statistical significance. The purely statistical probability of our results to occur under local realism is exceedingly unlikely, corresponding to an 11.5 standard deviation effect. Marissa Giustina University of Vienna, Physics Information-Theoretic Interpretations of Quantum Mechanics: 2016 Annual Philosophy of Physics Conference June 11-12, 2016 Visit http://philphysics.uwo.ca for conference details. Visit the Rotman website for more information on applications, events, project descriptions and openings. http://www.rotman.uwo.ca Follow The Rotman Institute on Twitter: https://twitter.com/rotmanphilo Like The Rotman Institute on Facebook: https://www.facebook.com/RotmanInstitute Subscribe to our channel: https://www.youtube.com/user/rotmanphilosophy
Parallel Universes
 
01:26:32
Is Schrödinger’s cat alive or dead? This thought experiment was devised to illustrate a fundamental puzzle in quantum mechanics. A radical solution is that the cat is both alive and dead, but in different, parallel universes. This is the ‘many-worlds interpretation’ of quantum mechanics and our panel of philosophers and physicists will discuss why it is controversial and its strange consequences. SPEAKERS Fay Dowker, Professor of Theoretical Physics, Imperial College London Eleanor Knox, Senior Lecturer in Philosophy, King's College London Simon Saunders, Professor of Philosophy of Physics, University of Oxford CHAIR Jonathan Birch, Fellow, The Forum; Assistant Professor, Department of Philosophy, Logic and Scientific Method, LSE Organized in conjunction with the **British Society for the Philosophy of Science** Recorded on 23 October 2017 at the LSE More information: http://www.philosophy-forum.org
A Brief History of Quantum Mechanics (Part 1)
 
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What we know and what we don't know. There are 3 conventional schools of thought on Quantum Mechanics: there is the Orthodox position which is the Copenhagen interpretation of Quantum Physics who use the Schrodinger-Dirac formalisms based on Max Born's Statistical Interpretation of Quantum Mechanics (http://en.wikipedia.org/wiki/Copenhagen_interpretation) Heisenberg's Matrix formalisms were later shown to be mathematically identical to Shrodinger's Hilbert Space (abstract vector spaces with all the properties of function spaces) based mathematics. This school of thought maintains that quantum mechanics can only be understood in this way (from the observation of photons) and we'll never be able to figure out or understand the inner workings of what's really going on inside the atom. This school of thought is content with not knowing where photons come from during drops in energy states, and maintain that this is just the way it is. PERIOD. There is the Agnostic Position, they don't care they just use what works and don't get involved in the debates or philosophies. And then there is the Realist Position which is the one that Einstein and Planck took. Planck maintained that we needed to figure out how his constant was derived from deeper physics, but Heisenberg just rolled with it... Einstein swore till his death bed that this interpretation of quantum physics was wrong, but could never figure out the answer to make everything work. The argument rages on about the deeper physics of what is really going on, and what types of things will be unlocked once we finally do figure it out... Till then... A paper on unsolved problems in Quantum Physics: http://www.azonano.com/news.asp?newsID=6725 Top Ten unsolved problems in Physics: (one person's list anyway) http://www.oglethorpe.edu/faculty/~m_rulison/top10.htm And of course this fun list: http://en.wikipedia.org/wiki/List_of_unsolved_problems_in_physics
Views: 61085 ColdFusionNow
Buddhism and Quantum Physics -1
 
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Jeffrey Grupp is a Buddhist philosopher, a political philosopher, and a lecturer at Purdue University Calumet and Purdue University Northcentral, both of which are in Northwest Indiana. He is the author of Corporatism (published by Progressive press, which is also Webster Tarpley's publisher) and The Telescreen {not yet published). He has published twelve articles in academic philosophy journals (Metaphysica, Indian International Journal of Buddhist Studies, Disputatio, among others), and he is a regular guest on the Nutrimedical Report, which is Dr. Bill Deagle's radio show. Grupp is the former associate editor of the prestigious academic philosophy journal, PHILO (editor: Quentin Smith). Grupp is the originator of the mereological nihilist interpretation of quantum mechanics (published in Axiomathes in 2006), and he has written about issues to do with domination by global corporations around the world. He has two web sites: www.abstractatom.com, and www.corporatism.us. Grupp has said on national radio that his political views are entirely absent from his university teaching and his political philosophy and academic teaching do not ever mix because universities would not consider his political positions real or credible information. Grupp's academic work in mainstream philosophy (specifically metaphysics, Buddhism, and quantum mechanics) has been claimed by Quentin Smith to be original and rigorous.
Views: 43778 craigMellow
Philosophy of Quantum Physics No BS | pt 2 EPR
 
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A serious philosophical discussion about Quantum Mechanics. Part 2 - the EPR Paper, wherein we see the argument for hidden variables given as given by einstien and co. Basically the question is: all this freaky deaky stuff that's going on in QM, is that stuff actually happening in reality, or is reality as we always thought it was and QM just can't account for some aspects of it? EPR are saying that reality is just as we thought it was, and QM is just incomplete. ***Read the paper yourself, it's only a few pages long and most of it is quite readable, skip the maths if you need, it will still make sense: http://prola.aps.org/abstract/PR/v47/i10/p777_1 references to be added soon...
Views: 18411 denito9474
Schrödinger's Cat: Missing the Point
 
04:06
Schrödinger's Cat is a commonly brought up thought experiment created by Erwin Schrodinger. It is often brought up to explain that objects a cat in a box can be both alive and dead at this. But despite this being so common, it is completely missing the point. Schrödinger came up with the thought experiment to explain why he thought it was ridiculous to consider that the Cat was both alive and dead at the same time. What people often leave out is that the event which causes the cat to die needs to be quantum in origin. Before the thought experiment, Scientists had discovered that objects on the atomic scale could be in a superposition where its situation could be described as two different states, but only when observed did it collapse into a single state. The thought experiment is that if the Cat will die if the quantum object is in one state. The logic says that since until we observe the thing, the quantum object will still be in superposition so the cat could be described as in superposition. Schrödinger used this to say that the Copenhagen interpretation, which said that things could be in superposition and ONLY collapsed when observed, was wrong because it resulted in this ridiculous conclusion. Here is the full text of the letters Schrodinger exchanged with Albert Einstein: One can even set up quite ridiculous cases. A cat is penned up in a steel chamber, along with the following device (which must be secured against direct interference by the cat): in a Geiger counter, there is a tiny bit of radioactive substance, so small, that perhaps in the course of the hour one of the atoms decays, but also, with equal probability, perhaps none; if it happens, the counter tube discharges and through a relay releases a hammer that shatters a small flask of hydrocyanic acid. If one has left this entire system to itself for an hour, one would say that the cat still lives if meanwhile no atom has decayed. The psi-function of the entire system would express this by having in it the living and dead cat (pardon the expression) mixed or smeared out in equal parts. It is typical of these cases that an indeterminacy originally restricted to the atomic domain becomes transformed into macroscopic indeterminacy, which can then be resolved by direct observation. That prevents us from so naively accepting as valid a "blurred model" for representing reality. In itself, it would not embody anything unclear or contradictory. There is a difference between a shaky or out-of-focus photograph and a snapshot of clouds and fog banks. — Erwin Schrödinger, Die gegenwärtige Situation in der Quantenmechanik (The present situation in quantum mechanics), Naturwissenschaften (translated by John D. Trimmer in Proceedings of the American Philosophical Society) Einstein's follow up: You are the only contemporary physicist, besides Laue, who sees that one cannot get around the assumption of reality, if only one is honest. Most of them simply do not see what sort of risky game they are playing with reality—reality as something independent of what is experimentally established. Their interpretation is, however, refuted most elegantly by your system of radioactive atom + amplifier + charge of gunpowder + cat in a box, in which the psi-function of the system contains both the cat alive and blown to bits. Nobody really doubts that the presence or absence of the cat is something independent of the act of observation I also included a poem at the end based on The Road Not Taken by Rober Frost Schrodinger's Cat: https://en.wikipedia.org/wiki/Schr%C3%B6dinger%27s_cat Quantum Superposition: https://en.wikipedia.org/wiki/Quantum_superposition Wave function collapse: https://en.wikipedia.org/wiki/Wave_function_collapse Copenhagen Interpretation: https://en.wikipedia.org/wiki/Copenhagen_interpretation Quantum Interpretations: https://en.wikipedia.org/wiki/Interpretations_of_quantum_mechanics Quantum Entanglement: https://en.wikipedia.org/wiki/Quantum_entanglement Schrodinger's Equation: https://en.wikipedia.org/wiki/Schr%C3%B6dinger_equation The Road Not Taken: https://en.wikipedia.org/wiki/The_Road_Not_Taken Robert Frost: https://en.wikipedia.org/wiki/Robert_Frost
Views: 7505 VanDeGraph2

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