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  1. How Quantum Theory Helps Us Explain.Richard Healey - 2012 - British Journal for the Philosophy of Science (1):axt031.
    I offer an account of how the quantum theory we have helps us explain so much. The account depends on a pragmatist interpretation of the theory: this takes a quantum state to serve as a source of sound advice to physically situated agents on the content and appropriate degree of belief about matters concerning which they are currently inevitably ignorant. The general account of how to use quantum states and probabilities to explain otherwise puzzling regularities is then illustrated by showing (...)
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  2. Owing to an Error in the Production Process the E-Mail Address of the Author of the Following Article has Been Incorrectly Reproduced: Synthese (2005) 147: 515–548 Mind, Brain, and Epistemologically Different Worlds. [REVIEW]Gabriel Vacariu - 2006 - Synthese 148:257.
    This paper is about Ionicioiu and Terno's paper (2011) about wave-particle duality and my EDWs pperspective (from 2005, 2006, 2008, 2010, 2011, 2014).
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  3. Energy Non-Conservation in Quantum Mechanics.Sean M. Carroll & Jackie Lodman - manuscript
    We study the conservation of energy, or lack thereof, when measurements are performed in quantum mechanics. The expectation value of the Hamiltonian of a system can clearly change when wave functions collapse in accordance with the standard textbook (Copenhagen) treatment of quantum measurement, but one might imagine that the change in energy is compensated by the measuring apparatus or environment. We show that this is not true; the change in the energy of a state after measurement can be arbitrarily large, (...)
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  4. Generalized Dicke States.Stephan Hartmann - manuscript
    Here P is the density operator of the system under consideration, and σ ± and σ 3 are the usual Pauli matrices, acting on atom i whose states are |1 > or |0 >, representing, respectively, the atom being in an excited state or in the ground state. B and C are appropriate decay constants and s has been called the pumping parameter [1]. It varies from s = 0 for pure damping to s = 1 for full laser action. (...)
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  5. The Invalid Inference of Universality in Quantum Mechanics.Andrew Knight - manuscript
    The universality assumption (“U”) that quantum wave states only evolve by linear or unitary dynamics has led to a variety of paradoxes in the foundations of physics. U is not directly supported by empirical evidence but is rather an inference from data obtained from microscopic systems. The inference of U conflicts with empirical observations of macroscopic systems, giving rise to the century-old measurement problem and subjecting the inference of U to a higher standard of proof, the burden of which lies (...)
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  6. From McTaggart to AdS^5 Signature V. 4.Paul Merriam - manuscript
    The purpose of this yet-another version of this note is to make another attempt to show how an 'AB-series' interpretation of time, given in a companion paper, leads, surprisingly, apparently, to the signature of the physicists' important AdS^5 geometry. This is not a theory of 2 time dimensions. Rather, it is a theory of 1 time dimension that has both A-series and B-series characteristics.
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  7. Hybrid Time Physics.Paul Merriam - manuscript
    I accept that McTaggart's A-series and B-series are not inter-reducible and that both are needed for a complete temporal description of a physical system. I consider the Wigner's Friend thought experiment. The A-series are associated with each (quantum) system, and relativity is associated with the B-series. I consider temporal evolution through this 'hybrid' time. We may define the rate of temporal flow as 1 B-series second per A-series second.
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  8. McTaggart Meets Schrodinger's Cat.Paul Merriam - manuscript
    This paper proposes an interpretation of time that is an 'A-theory' in that it incorporates both McTaggart's A-series and his B-series. The A-series characteristics are supposed to be 'ontologically private' analogous to qualia in the problem of other minds, such as in the Inverted Spectrum thought experiment, and is given a definition. The main idea is then that the experimenter and the cat do not share the same A-series characteristics, e.g. the same 'now', to some extent. So there is no (...)
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  9. Notes 2 A Theory of Time 6 7 2019.Paul Merriam - manuscript
    A theory of time was proposed in "A theory of time", an early version of which is on PhilPapers. The idea was that the A-series features of a physical system are ontologically private, and this was given a mathematical definition. Also B-series features are ontologically public. This brief note is a detailed rumination on path-integrals and Schrodinger's Cat, in this theory.
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  10. The UNBELIEVABLE Similar Ideas Between Theise and Menas’ Ideas (2016) and My Ideas (2002-2008) in Physics and Cognitive Neuroscience and Philosophy (the Mind-Brain Problem, Quantum Mechanics, Etc.).Gabriel Vacariu - manuscript
    The UNBELIEVABLE similar ideas between Theise and Menas’ ideas (2016) and my ideas (2002-2008) in Physics and Cognitive Neuroscience and Philosophy (the mind-brain problem, quantum mechanics, etc.) -/- (2016) Theise D. Neil (Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, NY, USA) and Kafatos C. Menas (bDepartment of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA; cSchmid College of Science & Technology, Chapman University, Orange, CA, USA) (2016), REVIEW - Fundamental awareness: A (...)
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  11. A Model for Creation: Part I.Paul Bernard White - manuscript
    Four initial postulates are presented (with two more added later), which state that construction of the physical universe proceeds from a sequence of discrete steps or "projections" --- a process that yields a sequence of discrete levels (labeled 0, 1, 2, 3, 4). At or above level 2 the model yields a (3+1)-dimensional structure, which is interpreted as ordinary space and time. As a result, time does not exist below level 2 of the system, and thus the quantum of action, (...)
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  12. The Wave Function and Particle Ontology.Shan Gao - 2014
    In quantum mechanics, the wave function of a N-body system is a mathematical function defined in a 3N-dimensional configuration space. We argue that wave function realism implies particle ontology when assuming: (1) the wave function of a N-body system describes N physical entities; (2) each triple of the 3N coordinates of a point in configuration space that relates to one physical entity represents a point in ordinary three-dimensional space. Moreover, the motion of particles is random and discontinuous.
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  13. Notes on the Reality of the Quantum State.Shan Gao - 2014
    Based on an analysis of protective measurements, we show that the quantum state represents the physical state of a single quantum system. This result is more definite than the PBR theorem [Pusey, Barrett, and Rudolph, Nature Phys. 8, 475 (2012)].
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  14. Three Possible Implications of Spacetime Discreteness.Shan Gao - 2013
    We analyze the possible implications of spacetime discreteness for the special and general relativity and quantum theory. It is argued that the existence of a minimum size of spacetime may explain the invariance of the speed of light in special relativity and Einstein’s equivalence principle in general relativity. Moreover, the discreteness of spacetime may also result in the collapse of the wave function in quantum mechanics, which may provide a possible solution to the quantum measurement problem. These interesting results might (...)
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  15. What Quantum Mechanics Describes is Discontinuous Motion of Particles.Shan Gao - 2001
    We present a theory of discontinuous motion of particles in continuous space-time. We show that the simplest nonrelativistic evolution equation of such motion is just the Schroedinger equation in quantum mechanics. This strongly implies what quantum mechanics describes is discontinuous motion of particles. Considering the fact that space-time may be essentially discrete when considering gravity, we further present a theory of discontinuous motion of particles in discrete space-time. We show that its evolution will naturally result in the dynamical collapse process (...)
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  16. Justifying Idealization by Abstraction.Sebastian Lutz -
    I show how omissions lead to robustness and can justify distortions, and I give inferentially relevant explications of abstraction and idealization. Abstraction is explicated as the omission of all and only those claims that use a specific vocabulary; idealization is explicated as the distortion of only those claims that use a specific vocabulary. With these explications, abstraction can justify idealization. As examples of how abstraction justifies idealization and leads to robustness, I discuss Beauchamp and Childress's four principles of biomedical ethics (...)
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  17. “Quantum Teleportation” and Other Quantum Misnomers.Dieter Zeh - manuscript
  18. Time in Quantum Theory.Dieter Zeh - manuscript
    in: Compendium of Quantum Physics, ed. by F. Weinert, K. Hentschel, D. Greenberger, and B. Falkenburg (Springer 2008).
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  19. Quantum Formalism: Brief Epistemological Considerations.Michele Caponigro - forthcoming
    We argue about a conceptual approach to quantum formalism. Starting from philosophical conjectures (Platonism, Idealism and Realism) as basic ontic elements (namely: math world, data world, and state of matter), we will analyze the quantum superposition principle. This analysis bring us to demonstrate that the basic assumptions affect in different ways:(a) the general problem of the information and computability about a system, (b) the nature of the math tool utilized and (c) the correspondent physical reality.
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  20. Von Neumann First Outlined the Possible Non Existence of Dispersion Free Ensembles in Quantum Mechanics: May We Verify Non Existing Dispersion Free Ensembles by Application of Quantum Mechanics in Experiments at Perceptive and Cognitive Level?Elio Conte - forthcoming - Neuroquantology.
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  21. Quantum Mechanics Over Sets.David Ellerman - forthcoming - Synthese.
    This paper shows how the classical finite probability theory (with equiprobable outcomes) can be reinterpreted and recast as the quantum probability calculus of a pedagogical or toy model of quantum mechanics over sets (QM/sets). There have been several previous attempts to develop a quantum-like model with the base field of ℂ replaced by ℤ₂. Since there are no inner products on vector spaces over finite fields, the problem is to define the Dirac brackets and the probability calculus. The previous attempts (...)
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  22. This is an Entry to the Compendium of Quantum Physics, Edited by F Weinert, K Hentschel and D Greenberger, to Be Published by Springer-Verlag.Gregg Jaeger - forthcoming
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  23. A New Problem for Quantum Mechanics.Alexander Meehan - forthcoming - British Journal for the Philosophy of Science:000-000.
    In this article I raise a new problem for quantum mechanics, which I call the control problem. Like the measurement problem, the control problem places a fundamental constraint on quantum theories. The characteristic feature of the problem is its focus on state preparation. In particular, whereas the measurement problem turns on a premise about the completeness of the quantum state ('no hidden variables'), the control problem turns on a premise about our ability to prepare or control quantum states. After raising (...)
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  24. Relativized Descriptions, Quantum Mechanics, and Relativity.M. Mugur-Schächter - forthcoming - Foundations of Physics.
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  25. Toward Quantum Visual Information Transfer in the Human Brain, arXiv. Org/Quant-Phys: 0809.0008.V. Salari, M. Rahnama & J. Tuszynski - forthcoming - Foundations of Physics.
  26. On the categoricity of quantum mechanics.Iulian D. Toader - 2021 - European Journal for Philosophy of Science 11 (1):1-14.
    The paper offers an argument against an intuitive reading of the Stone-von Neumann theorem as a categoricity result, thereby pointing out that this theorem does not entail any model-theoretical difference between the theories that validate it and those that don't.
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  27. Perspectival Objectivity.Peter W. Evans - 2020 - European Journal for Philosophy of Science 10 (2):1-21.
    Building on self-professed perspectival approaches to both scientific knowledge and causation, I explore the potentially radical suggestion that perspectivalism can be extended to account for a type of objectivity in science. Motivated by recent claims from quantum foundations that quantum mechanics must admit the possibility of observer-dependent facts, I develop the notion of ‘perspectival objectivity’, and suggest that an easier pill to swallow, philosophically speaking, than observer-dependency is perspective-dependency, allowing for a notion of observer-independence indexed to an agent perspective. Working (...)
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  28. Main Concepts in Philosophy of Quantum Information.Vasil Penchev - 2020 - Philosophy of Science eJournal (Elsevier: SSRN) 13 (31):1-4.
    Quantum mechanics involves a generalized form of information, that of quantum information. It is the transfinite generalization of information and re-presentable by transfinite ordinals. The physical world being in the current of time shares the quality of “choice”. Thus quantum information can be seen as the universal substance of the world serving to describe uniformly future, past, and thus the present as the frontier of time. Future is represented as a coherent whole, present as a choice among infinitely many alternatives, (...)
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  29. Physics Overwritten in a New Perspective: „Epistemologically Different Worlds”,.Gabriel Vacariu & Mihai Vacariu - 2020 - Bucharest: Meridiane Print.
    Introduction The EDWs perspective, a new general framework of thinking for all physicists! “The present situation in physics is as if we know chess, but we don't know one or two rules.” Richard Feynman In other works (2002, 2005, 2008, 2011, 2012, 2014, 2015, 2016; Vacariu and Vacariu 2010, 2016a, 2016b), we have showed that the greatest illusion of human knowledge is the notion of “world”, of “uni-verse”, or as we called it, the “Unicorn-world”, and this notion has survived from (...)
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  30. Mecanica cuantică fenomenologică.Nicolae Sfetcu - 2019 - Drobeta Turnu Severin: MultiMedia Publishing.
    Previzualizare carte -/- O introducere la nivel fenomenologic, cu un aparat matematic minimal, în mecanica cuantică. Un ghid pentru cine dorește să înțeleagă cea mai modernă, mai complexă și mai neconformă disciplină fizică, un domeniu care a schimbat fundamental percepțiile oamenilor de știință despre Lume. În 1900, Max Planck a introdus ideea că energia este cuantificată, pentru a obţine o formulă la energia emisă de un corp negru. În 1905, Einstein a explicat efectul fotoelectric postulând că energia luminii vine în (...)
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  31. Interpreting Quantum Entanglement: Steps Towards Coherentist Quantum Mechanics.Claudio Calosi & Matteo Morganti - 2018 - British Journal for the Philosophy of Science:axy064.
    We put forward a new, ‘coherentist’ account of quantum entanglement, according to which entangled systems are characterized by symmetric relations of ontological dependence among the component particles. We compare this coherentist viewpoint with the two most popular alternatives currently on offer—structuralism and holism—and argue that it is essentially different from, and preferable to, both. In the course of this article, we point out how coherentism might be extended beyond the case of entanglement and further articulated.
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  32. Plasma Brain Dynamics (PBD): II. Quantum Effects on Consciousness.John Z. G. Ma - 2018 - Cosmos and History 14 (1):91-104.
    This article studies the quantum effect of the brain neuronal system on both normal and abnormal conscious states. It develops Plasma Brain Dynamics (PBD) to obtain a set of kinetic quantum-plasma Wigner-Poisson equations. The model is established under typical electrostatic and collision-free conditions in both the absence and presence of an external magnetic field. The quantum perturbation is solved analytically by employing a backward-mapping approach to the motion of electrons. Results expose that the quantum perturbation turns out to be zero (...)
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  33. Against Radical Quantum Ontologies.Nina Emery - 2017 - Philosophy and Phenomenological Research 95 (3):564-591.
    Some theories of quantum mechanical phenomena endorse wave function realism, according to which the physical space we inhabit is very different from the physical space we appear to inhabit. In this paper I explore an argument against wave function realism that appeals to a type of simplicity that, although often overlooked, plays a crucial role in scientific theory choice. The type of simplicity in question is simplicity of fit between the way a theory says the world is and the way (...)
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  34. Quantum Physics Seen from a Perspective of the Humanities.Yusuke Kaneko - 2017 - The Basis: The Annual Bulletin of ResearchCenter for Liberal Education (Musashino University) 7:171-193.
    Although written in Japanese, an overall picture of quantum physics is drawn, which would surely be useful for beginners as well as researchers of the humanities.
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  35. Relativity Theory May Not Have the Last Word on the Nature of Time: Quantum Theory and Probabilism.Nicholas Maxwell - 2017 - In G. Ghirardi & S. Wuppulur (eds.), Space, Time and the Limits of Human Understanding. Springer. pp. 109-124.
    Two radically different views about time are possible. According to the first, the universe is three dimensional. It has a past and a future, but that does not mean it is spread out in time as it is spread out in the three dimensions of space. This view requires that there is an unambiguous, absolute, cosmic-wide "now" at each instant. According to the second view about time, the universe is four dimensional. It is spread out in both space and time (...)
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  36. Could Inelastic Interactions Induce Quantum Probabilistic Transitions?Nicholas Maxwell - 2017 - In Shan Gao (ed.), Collapse of the Wave Function. Cambridge: Cambridge University Press. pp. 257-273.
    What are quantum entities? Is the quantum domain deterministic or probabilistic? Orthodox quantum theory (OQT) fails to answer these two fundamental questions. As a result of failing to answer the first question, OQT is very seriously defective: it is imprecise, ambiguous, ad hoc, non-explanatory, inapplicable to the early universe, inapplicable to the cosmos as a whole, and such that it is inherently incapable of being unified with general relativity. It is argued that probabilism provides a very natural solution to the (...)
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  37. Is QBism the Future of Quantum Physics? [REVIEW]Kelvin McQueen - 2017 - Quantum Times 2017.
    The purpose of this book is to explain Quantum Bayesianism (‘QBism’) to “people without easy access to mathematical formulas and equations” (4-5). Qbism is an interpretation of quantum mechanics that “doesn’t meddle with the technical aspects of the theory [but instead] reinterprets the fundamental terms of the theory and gives them new meaning” (3). The most important motivation for QBism, enthusiastically stated on the book’s cover, is that QBism provides “a way past quantum theory’s paradoxes and puzzles” such that much (...)
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  38. (August 2017) Unbelievable Similarities Between R. E. Kastner’s Ideas (Univ. Of Maryland, USA) (2016) and My Ideas (2002-2008).Gabriel Vacariu - 2017 - Dissertation, University of Bucharest
    The title of Kastner’s article is “Beyond Complementarity” (R. E. Kastner 6 March 2016 Foundations of Physics Group, University of Maryland, College Park, USA) -/- In this paper, there are quite many ideas similar to my ideas. The main ideas are the following: -/- - Bohr’s complementarity does not work: “’Complementarity’ cannot consistently account for the emergence of classicality from the quantum level (p. 1) - It is argued that ultimately this problem arises from Bohr’s implicit assumption that all quantum (...)
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  39. Quantum Causal Modelling.Fabio Costa & Sally Shrapnel - 2016 - New Journal of Physics 18 (6):063032.
    Causal modelling provides a powerful set of tools for identifying causal structure from observed correlations. It is well known that such techniques fail for quantum systems, unless one introduces 'spooky' hidden mechanisms. Whether one can produce a genuinely quantum framework in order to discover causal structure remains an open question. Here we introduce a new framework for quantum causal modelling that allows for the discovery of causal structure. We define quantum analogues for core features of classical causal modelling techniques, including (...)
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  40. Semantic Epistemology Redux: Proof and Validity in Quantum Mechanics.Arnold Cusmariu - 2016 - Logos and Episteme 7 (3):287-303.
    Definitions I presented in a previous article as part of a semantic approach in epistemology assumed that the concept of derivability from standard logic held across all mathematical and scientific disciplines. The present article argues that this assumption is not true for quantum mechanics (QM) by showing that concepts of validity applicable to proofs in mathematics and in classical mechanics are inapplicable to proofs in QM. Because semantic epistemology must include this important theory, revision is necessary. The one I propose (...)
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  41. What Quantum Mechanics Doesn't Show.Justin P. McBrayer & Dugald Owen - 2016 - Teaching Philosophy 39 (2):163-176.
    Students often invoke quantum mechanics in class or papers to make philosophical points. This tendency has been encouraged by pop culture influences like the film What the Bleep do We Know? There is little merit to most of these putative implications. However, it is difficult for philosophy teachers unfamiliar with quantum mechanics to handle these supposed implications in a clear and careful way. This paper is a philosophy of science version of MythBusters. We offer a brief primer on the nature (...)
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  42. Non-Empirical Arguments in Physical Theories.Francois-Igor Pris - 2016 - Lap Lambert.
  43. Qu'est-ce que la mécanique quantique ?Thomas Boyer-Kassem - 2015 - Vrin.
    La mécanique quantique est une théorie physique contemporaine réputée pour ses défis au sens commun et ses paradoxes. Depuis bientôt un siècle, plusieurs interprétations de la théorie ont été proposées par les physiciens et les philosophes, offrant des images quantiques du monde, ou des ontologies, radicalement différentes. L'existence d'un hasard fondamental, ou d'une multitude de mondes en-dehors du nôtre, dépend ainsi de l'interprétation adoptée. Après avoir discuté de la définition de l'interprétation d'une théorie physique, ce livre présente trois principales interprétations (...)
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  44. Conservation of Information and the Foundations of Quantum Mechanics.Giulio Chiribella & Carlo Maria Scandolo - 2015 - EPJ Web of Conferences 95:03003.
    We review a recent approach to the foundations of quantum mechanics inspired by quantum information theory. The approach is based on a general framework, which allows one to address a large class of physical theories which share basic information-theoretic features. We first illustrate two very primitive features, expressed by the axioms of causality and purity-preservation, which are satisfied by both classical and quantum theory. We then discuss the axiom of purification, which expresses a strong version of the Conservation of Information (...)
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  45. A Formal Framework for the Study of the Notion of Undefined Particle Number in Quantum Mechanics.Newton C. A. Da Costa & Federico Holik - 2015 - Synthese 192 (2):505-523.
    It is usually stated that quantum mechanics presents problems with the identity of particles, the most radical position—supported by E. Schrödinger—asserting that elementary particles are not individuals. But the subject goes deeper, and it is even possible to obtain states with an undefined particle number. In this work we present a set theoretical framework for the description of undefined particle number states in quantum mechanics which provides a precise logical meaning for this notion. This construction goes in the line of (...)
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  46. Why Delayed Choice Experiments Do NOT Imply Retrocausality.David Ellerman - 2015 - Quantum Studies: Mathematics and Foundations 2 (2):183-199.
    There is a fallacy that is often involved in the interpretation of quantum experiments involving a certain type of separation such as the: double-slit experiments, which-way interferometer experiments, polarization analyzer experiments, Stern-Gerlach experiments, and quantum eraser experiments. The fallacy leads not only to flawed textbook accounts of these experiments but to flawed inferences about retrocausality in the context of delayed choice versions of separation experiments.
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  47. The Quantum Dissidents.Olival Freire Jr - 2015 - Springer.
    The huge success of quantum mechanics as a predictive theory has been accompanied, from the very beginning, by doubts and controversy about its foundations and interpretation. This book looks in detail at how research on foundations evolved after WWII, when it was revived, until the mid 1990s, when most of this research merged into the technological promise of quantum information. It is the story of the quantum dissidents, the scientists who brought this subject from the margins of physics into its (...)
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  48. “Formal” Versus “Empirical” Approaches to Quantum–Classical Reduction.Joshua Rosaler - 2015 - Topoi 34 (2):325-338.
    I distinguish two types of reduction within the context of quantum-classical relations, which I designate “formal” and “empirical”. Formal reduction holds or fails to hold solely by virtue of the mathematical relationship between two theories; it is therefore a two-place, a priori relation between theories. Empirical reduction requires one theory to encompass the range of physical behaviors that are well-modeled in another theory; in a certain sense, it is a three-place, a posteriori relation connecting the theories and the domain of (...)
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  49. On the Traversal Time of Barriers.Horst Aichmann & Günter Nimtz - 2014 - Foundations of Physics 44 (6):678-688.
    Fifty years ago Hartman studied the barrier transmission time of wave packets (J Appl Phys 33:3427–3433, 1962). He was inspired by the tunneling experiments across thin insulating layers at that time. For opaque barriers he calculated faster than light propagation and a transmission time independent of barrier length, which is called the Hartman effect. A faster than light (FTL or superluminal) wave packet velocity was deduced in analog tunneling experiments with microwaves and with infrared light thirty years later. Recently, the (...)
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  50. A Unified Explanation of Quantum Phenomena? The Case for the Peer‐to‐Peer Simulation Hypothesis as an Interdisciplinary Research Program.Marcus Arvan - 2014 - Philosophical Forum 45 (4):433-446.
    In my 2013 article, “A New Theory of Free Will”, I argued that several serious hypotheses in philosophy and modern physics jointly entail that our reality is structurally identical to a peer-to-peer (P2P) networked computer simulation. The present paper outlines how quantum phenomena emerge naturally from the computational structure of a P2P simulation. §1 explains the P2P Hypothesis. §2 then sketches how the structure of any P2P simulation realizes quantum superposition and wave-function collapse (§2.1.), quantum indeterminacy (§2.2.), wave-particle duality (§2.3.), (...)
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