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  1. Quantum Indiscernibility Without Vague Identity.Joanna Odrowa˛Z. -Sypniewska - 2001 - Analysis 61 (269):65–69.
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  2. Logical Bell Inequalities.Samson Abramsky & Lucien Hardy - 2012 - Physical Review A 85:062114-1 - 062114-11.
    Bell inequalities play a central role in the study of quantum nonlocality and entanglement, with many applications in quantum information. Despite the huge literature on Bell inequalities, it is not easy to find a clear conceptual answer to what a Bell inequality is, or a clear guiding principle as to how they may be derived. In this paper, we introduce a notion of logical Bell inequality which can be used to systematically derive testable inequalities for a very wide variety of (...)
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  3. Untangling Entanglement.Peter M. Ainsworth - 2007 - Foundations of Physics 37 (1):144-158.
    In this paper recent work that attempts to link quantum entanglement to (i) thermodynamic energy, (ii) thermodynamic entropy and (iii) information is reviewed. With respect to the first two links the paper is essentially expository. The final link is elaborated on: it is argued that the value of the entanglement of a bipartite system in a pure state is equal to the value of the irreducible uncertainty (i.e. irreducibly missing information) about its subsystems and that this suggests that entanglement gives (...)
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  4. Book Review Of: "Do We Really Understand Quantum Mechanics?" by Franck Laloë. [REVIEW]Valia Allori - 2013 - Notre Dame Philosophical Review.
  5. On the Interpretative Essence of the Term “Interaction-Free Measurement”: The Role of Entanglement. [REVIEW]Renato M. Angelo - 2009 - Foundations of Physics 39 (2):109-119.
    The polemical term “interaction-free measurement” (IFM) is analyzed in its interpretative nature. Two seminal works proposing the term are revisited and their underlying interpretations are assessed. The role played by nonlocal quantum correlations (entanglement) is formally discussed and some controversial conceptions in the original treatments are identified. As a result the term IFM is shown to be consistent neither with the standard interpretation of quantum mechanics nor with the lessons provided by the EPR debate.
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  6. On the Relation Between Schmidt Coefficients and Entanglement.Paolo Aniello & Cosmo Lupo - 2009 - In Institute of Physics Krzysztof Stefanski (ed.), Open Systems and Information Dynamics. World Scientific Publishing Company. pp. 16--02.
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  7. Finite-Time Destruction of Entanglement and Non-Locality by Environmental Influences.Kevin Ann & Gregg Jaeger - 2009 - Foundations of Physics 39 (7):790-828.
    Entanglement and non-locality are non-classical global characteristics of quantum states important to the foundations of quantum mechanics. Recent investigations have shown that environmental noise, even when it is entirely local in influence, can destroy both of these properties in finite time despite giving rise to full quantum state decoherence only in the infinite time limit. These investigations, which have been carried out in a range of theoretical and experimental situations, are reviewed here.
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  8. Holism and Nonseparability by Analogy.Aristidis Arageorgis - 2013 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 44 (3):206-214.
    This paper explores the issues of holism and nonseparability in relativistic quantum field theory by focusing on an analog of the typical model featuring in many discussions of holism and nonseparability in nonrelativistic quantum mechanics. It is argued that the quantum field theoretic model does exhibit holism in a metaphysical sense and that there are plausible grounds to view QFT holistic in an epistemological sense. However, the complexities arising from the fact that quantum fields have infinite degrees of freedom prohibit (...)
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  9. Weak Quantum Theory: Complementarity and Entanglement in Physics and Beyond. [REVIEW]Harald Atmanspacher - 2002 - Foundations of Physics 32 (3):379-406.
    The concepts of complementarity and entanglement are considered with respect to their significance in and beyond physics. A formally generalized, weak version of quantum theory, more general than ordinary quantum theory of physical systems, is outlined and tentatively applied to two examples.
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  10. Pentagrams and Paradoxes.Piotr Badzia̧g, Ingemar Bengtsson, Adán Cabello, Helena Granström & Jan-Åke Larsson - 2011 - Foundations of Physics 41 (3):414-423.
    Klyachko and coworkers consider an orthogonality graph in the form of a pentagram, and in this way derive a Kochen-Specker inequality for spin 1 systems. In some low-dimensional situations Hilbert spaces are naturally organised, by a magical choice of basis, into SO(N) orbits. Combining these ideas some very elegant results emerge. We give a careful discussion of the pentagram operator, and then show how the pentagram underlies a number of other quantum “paradoxes”, such as that of Hardy.
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  11. The Logic of Quantum Programs.Alexandru Baltag & Sonja Smets - unknown
    We present a logical calculus for reasoning about information flow in quantum programs. In particular we introduce a dynamic logic that is capable of dealing with quantum measurements, unitary evolutions and entanglements in compound quantum systems. We give a syntax and a relational semantics in which we abstract away from phases and probabilities. We present a sound proof system for this logic, and we show how to characterize by logical means various forms of entanglement (e.g. the Bell states) and various (...)
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  12. What the Humean Should Say About Entanglement.Harjit Bhogal & Zee R. Perry - 2015 - Noûs 50 (3):n/a-n/a.
    Tim Maudlin has influentially argued that Humeanism about laws of nature stands in conflict with quantum mechanics. Specifically Humeanism implies the principle Separability: the complete physical state of a world is determined by the intrinsic physical state of each space-time point. Maudlin argues Separability is violated by the entangled states posited by QM. We argue that Maudlin only establishes that a stronger principle, which we call Strong Separability, is in tension with QM. Separability is not in tension with QM. Moreover, (...)
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  13. Philosophy of Quantum Information and Entanglement.Alisa Bokulich & Gregg Jaeger (eds.) - 2010 - Cambridge University Press.
    "Entanglement can be understood as an extraordinary degree of correlation between states of quantum systems - a correlation that cannot be given an explanation ...
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  14. Complementarity and Information in “Delayed-Choice for Entanglement Swapping”.Časlav Brukner, Markus Aspelmeyer & Anton Zeilinger - 2005 - Foundations of Physics 35 (11):1909-1919.
  15. On the Entanglement Structure in Quantum Cloning.Dagmar Bruß & Chiara Macchiavello - 2003 - Foundations of Physics 33 (11):1617-1628.
    We study the entanglement properties of the output state of a universal cloning machine. We analyse in particular bipartite and tripartite entanglement of the clones, and discuss the “classical limit” of infinitely many output copies.
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  16. Indeterminacy and Entanglement: The Challenge of Quantum Mechanics.J. Bub - 2000 - British Journal for the Philosophy of Science 51 (4):597-615.
    I explore the nature of the problem generated by the transition from classical to quantum mechanics, and I survey some of the different responses to this problem. I show briefly how recent work on quantum information over the past ten years has led to a shift of focus, in which the puzzling features of quantum mechanics are seen as a resource to be developed rather than a problem to be solved.
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  17. Quantum Entanglement and Information.Jeffrey Bub - 2008 - Stanford Encyclopedia of Philosophy.
  18. Epistemic Vs Ontic Classification of Quantum Entangled States?Michele Caponigro & Enrico Giannetto - 2012 - Discusiones Filosóficas 13 (20):137 - 145.
    In this brief paper, starting from recent works, we analyze from conceptual point of view this basic question: can be the nature of quantum entangled states interpreted ontologically or epistemologically? According some works, the degrees of freedom of quantum systems permit us to establish a possible classification between factorizables and entangled states. We suggest, that the "choice" of degree of freedom, even if mathematically justified introduces epistemic element, not only in the systems but also in their classification. We retain, instead, (...)
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  19. Multiparticle Entanglement.H. A. Carteret, N. Linden, S. Popescu & A. Sudbery - 1999 - Foundations of Physics 29 (4):527-552.
    The Greenberger-Horne-Zeilinger state is the most famous example of a state with multiparticle entanglement. In this article we describe a group theoretic framework we have been developing for understanding the entanglement in general states of two or more quantum particles. As far as entanglement is concerned, two states of n spin-1/2 particles are equivalent if they are on the same orbit of the group of local rotations (U(2)n). We consider both pure and mixed states and calculate the number of independent (...)
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  20. Constraints on Determinism: Bell Versus Conway–Kochen.Eric Cator & Klaas Landsman - 2014 - Foundations of Physics 44 (7):781-791.
    Bell’s Theorem from Physics 36:1–28 (1964) and the (Strong) Free Will Theorem of Conway and Kochen from Notices AMS 56:226–232 (2009) both exclude deterministic hidden variable theories (or, in modern parlance, ‘ontological models’) that are compatible with some small fragment of quantum mechanics, admit ‘free’ settings of the archetypal Alice and Bob experiment, and satisfy a locality condition akin to parameter independence. We clarify the relationship between these theorems by giving reformulations of both that exactly pinpoint their resemblance and their (...)
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  21. Bell Nonlocality, Signal Locality and Unpredictability (or What Bohr Could Have Told Einstein at Solvay Had He Known About Bell Experiments).Eric G. Cavalcanti & Howard M. Wiseman - 2012 - Foundations of Physics 42 (10):1329-1338.
    The 1964 theorem of John Bell shows that no model that reproduces the predictions of quantum mechanics can simultaneously satisfy the assumptions of locality and determinism. On the other hand, the assumptions of signal locality plus predictability are also sufficient to derive Bell inequalities. This simple theorem, previously noted but published only relatively recently by Masanes, Acin and Gisin, has fundamental implications not entirely appreciated. Firstly, nothing can be concluded about the ontological assumptions of locality or determinism independently of each (...)
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  22. Quantum Control in Foundational Experiments.Lucas C. Céleri, Rafael M. Gomes, Radu Ionicioiu, Thomas Jennewein, Robert B. Mann & Daniel R. Terno - 2014 - Foundations of Physics 44 (5):576-587.
    We describe a new class of experiments designed to probe the foundations of quantum mechanics. Using quantum controlling devices, we show how to attain a freedom in temporal ordering of the control and detection of various phenomena. We consider wave–particle duality in the context of quantum-controlled and the entanglement-assisted delayed-choice experiments. Then we discuss a quantum-controlled CHSH experiment and measurement of photon’s transversal position and momentum in a single set-up.
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  23. Entanglement and Thermodynamics in General Probabilistic Theories.Giulio Chiribella & Carlo Maria Scandolo - 2015 - New Journal of Physics 17:103027.
    Entanglement is one of the most striking features of quantum mechanics, and yet it is not specifically quantum. More specific to quantum mechanics is the connection between entanglement and thermodynamics, which leads to an identification between entropies and measures of pure state entanglement. Here we search for the roots of this connection, investigating the relation between entanglement and thermodynamics in the framework of general probabilistic theories. We first address the question whether an entangled state can be transformed into another by (...)
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  24. Aspects of Entanglement in Quantum Many-Body Systems.John W. Clark, Hessam Habibian, Aikaterini D. Mandilara & Manfred L. Ristig - 2010 - Foundations of Physics 40 (9-10):1200-1220.
    Knowledge of the entanglement properties of the wave functions commonly used to describe quantum many-particle systems can enhance our understanding of their correlation structure and provide new insights into quantum phase transitions that are observed experimentally or predicted theoretically. To illustrate this theme, we first examine the bipartite entanglement contained in the wave functions generated by microscopic many-body theory for the transverse Ising model, a system of Pauli spins on a lattice that exhibits an order-disorder magnetic quantum phase transition under (...)
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  25. The Subtleties of Entanglement and its Role in Quantum Information Theory.Rob Clifton - 2002 - Proceedings of the Philosophy of Science Association 2002 (3):S150-S167.
    My aim in this paper is a modest one. I do not have any particular thesis to advance about the nature of entanglement, nor can I claim novelty for any of the material I shall discuss. My aim is simply to raise some questions about entanglement that spring naturally from certain developments in quantum information theory and are, I believe, worthy of serious consideration by philosophers of science. The main topics I discuss are different manifestations of quantum nonlocality, entanglement-assisted communication, (...)
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  26. Decryption and Quantum Computing: Seven Qubits and Counting.John G. Cramer - unknown
    Alternate View Column AV-112 Keywords: quantum mechanics entangled states computer computing 7 qubits prime number factoring Schor algorithm NMR nuclear magnetic resonance fast parallel decryption coherence wave-function collapse many-worlds transactional interpretation Published in the June-2002 issue of Analog Science Fiction & Fact Magazine ; This column was written and submitted 12/19/2001 and is copyrighted ©2001 by John G. Cramer.
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  27. On the Necessity of Entanglement for the Explanation of Quantum Speedup.Michael Cuffaro - manuscript
    Of the many and varied applications of quantum information theory, perhaps the most fascinating is the sub-field of quantum computation. In this sub-field, computational algorithms are designed which utilise the resources available in quantum systems in order to compute solutions to computational problems with, in some cases, exponentially fewer resources than any known classical algorithm. While the fact of quantum computational speedup is almost beyond doubt, the source of quantum speedup is still a matter of debate. In this paper I (...)
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  28. Reconsidering No-Go Theorems From a Practical Perspective.Michael E. Cuffaro - forthcoming - British Journal for the Philosophy of Science:axw038.
    I argue that our judgements regarding the locally causal models which are compatible with a given quantum no-go theorem implicitly depend, in part, on the context of inquiry. It follows from this that certain no-go theorems, which are particularly striking in the traditional foundational context, have no force when the context switches to a discussion of the physical systems we are capable of building with the aim of classically reproducing quantum statistics. I close with a general discussion of the possible (...)
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  29. On the Significance of the Gottesman–Knill Theorem.MIchael E. Cuffaro - 2017 - British Journal for the Philosophy of Science 68 (1):91-121.
    According to the Gottesman–Knill theorem, quantum algorithms that utilize only the operations belonging to a certain restricted set are efficiently simulable classically. Since some of the operations in this set generate entangled states, it is commonly concluded that entanglement is insufficient to enable quantum computers to outperform classical computers. I argue in this article that this conclusion is misleading. First, the statement of the theorem is, on reflection, already evident when we consider Bell’s and related inequalities in the context of (...)
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  30. Review Of: Christopher G. Timpson, Quantum Information Theory and the Foundations of Quantum Mechanics. [REVIEW]Michael E. Cuffaro - 2014 - Philosophy of Science 81 (4):681-684,.
  31. On the Physical Explanation for Quantum Computational Speedup.Michael E. Cuffaro - 2013 - Dissertation, The University of Western Ontario
    The aim of this dissertation is to clarify the debate over the explanation of quantum speedup and to submit, for the reader's consideration, a tentative resolution to it. In particular, I argue, in this dissertation, that the physical explanation for quantum speedup is precisely the fact that the phenomenon of quantum entanglement enables a quantum computer to fully exploit the representational capacity of Hilbert space. This is impossible for classical systems, joint states of which must always be representable as product (...)
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  32. On the Debate Concerning the Proper Characterization of Quantum Dynamical Evolution.Michael E. Cuffaro & Wayne C. Myrvold - 2013 - Philosophy of Science 80 (5):1125-1136.
    There has been a long-standing and sometimes passionate debate between physicists over whether a dynamical framework for quantum systems should incorporate not completely positive (NCP) maps in addition to completely positive (CP) maps. Despite the reasonableness of the arguments for complete positivity, we argue that NCP maps should be allowed, with a qualification: these should be understood, not as reflecting ‘not completely positive’ evolution, but as linear extensions, to a system’s entire state space, of CP maps that are only partially (...)
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  33. Entanglement.Juanita Dahms - 2004 - Literature & Aesthetics 14 (2):48.
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  34. Entanglement as a Semantic Resource.Dalla Chiara Maria Luisa, Giuntini Roberto, Ledda Antonio, Leporini Roberto & Sergioli Giuseppe - 2010 - Foundations of Physics 40 (9-10):1494-1518.
    The characteristic holistic features of the quantum theoretic formalism and the intriguing notion of entanglement can be applied to a field that is far from microphysics: logical semantics. Quantum computational logics are new forms of quantum logic that have been suggested by the theory of quantum logical gates in quantum computation. In the standard semantics of these logics, sentences denote quantum information quantities: systems of qubits (quregisters) or, more generally, mixtures of quregisters (qumixes), while logical connectives are interpreted as special (...)
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  35. Entanglement and Quantum Superposition of a Macroscopic-Macroscopic System.Francesco De Martini - 2011 - Foundations of Physics 41 (3):363-370.
    Two quantum Macro-states and their Macroscopic Quantum Superpositions (MQS) localized in two far apart, space-like separated sites can be non-locally correlated by any entangled couple of single-particles having interacted in the past. This novel “Macro-Macro” paradigm is investigated on the basis of a recent study on an entangled Micro-Macro system involving N≈105 particles. Crucial experimental issues as the violation of Bell’s inequalities by the Macro-Macro system are considered.
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  36. From Implexity to Perplexity - Entanglement in Quantum Theory.Jean-Michel Delhotel - unknown
    An essential feature of the quantum mechanical formalism, entanglement is widely thought to imply nonlocality or nonseparability as a puzzling trait of our ‘quantum world’. The notion of entanglement is reviewed and the question is addressed of whether invoking nonlocal influences, or perhaps time-reversed causation, is warranted in such ‘applications’ as quantum teleportation and entanglement swapping.
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  37. On Tracks in a Cloud Chamber.G. F. Dell’Antonio - 2015 - Foundations of Physics 45 (1):11-21.
    It is an experimental fact that \ -decays produce in a cloud chamber at most one track and that this track points in a random direction. This seems to contradict the description of decay in Quantum Mechanics: according to Gamow a spherical wave is produced and moves radially according to Schrödinger’s equation. It is as if the interaction with the supersaturated vapor turned the wave into a particle. The aim of this note is to place this effect in the context (...)
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  38. Anthropomorphic Quantum Darwinism as an Explanation for Classicality.Thomas Durt - 2010 - Foundations of Science 15 (2):177-197.
    According to Zurek, the emergence of a classical world from a quantum substrate could result from a long selection process that privileges the classical bases according to a principle of optimal information. We investigate the consequences of this principle in a simple case, when the system and the environment are two interacting scalar particles supposedly in a pure state. We show that then the classical regime corresponds to a situation for which the entanglement between the particles (the system and the (...)
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  39. Generalized Uncertainty Principle.Saurav Dwivedi - manuscript
    Quantum theory brought an irreducible lawlessness in physics. This is accompanied by lack of specification of state of a system. We can not measure states even though they ever existed. We can measure only transition from one state into another. We deduce this lack of determination of state mathematically, and thus provide formalism for maximum precision of determination of mixed states. However, the results thus obtained show consistency with Heisenberg's uncertainty relations.
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  40. Delayed-Choice Experiments and the Metaphysics of Entanglement.Matthias Egg - 2013 - Foundations of Physics 43 (9):1124-1135.
    Delayed-choice experiments in quantum mechanics are often taken to undermine a realistic interpretation of the quantum state. More specifically, Healey has recently argued that the phenomenon of delayed-choice entanglement swapping is incompatible with the view that entanglement is a physical relation between quantum systems. This paper argues against these claims. It first reviews two paradigmatic delayed-choice experiments and analyzes their metaphysical implications. It then applies the results of this analysis to the case of entanglement swapping, showing that such experiments pose (...)
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  41. Relativity, Quantum Entanglement, Counterfactuals, and Causation.Luke Fenton-Glynn & Thomas Kroedel - 2015 - British Journal for the Philosophy of Science 66 (1):45-67.
    We investigate whether standard counterfactual analyses of causation imply that the outcomes of space-like separated measurements on entangled particles are causally related. Although it has sometimes been claimed that standard CACs imply such a causal relation, we argue that a careful examination of David Lewis’s influential counterfactual semantics casts doubt on this. We discuss ways in which Lewis’s semantics and standard CACs might be extended to the case of space-like correlations.
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  42. Multiparticle Entanglement.Daniel I. Fivel - 1999 - Foundations of Physics 29 (4):561-570.
    It is shown that completely entangled two-particle quantum states are simultaneous eigenstates of a large set of commuting, nonlocal observables, a characterization that generalizes to multiparticle systems. This leads to a nonstatistical proof of the Bell-EPR no-hidden-variable theorem for two-particle systems and to a family of multiparticle generalizations of the three-particle system of Greenberger, Horne, and Zeilinger.
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  43. Examining the Compatibility of Special Relativity and Quantum Theory.N. G. - 1995 - Studies in History and Philosophy of Science Part B 26 (3):325-331.
  44. Interneuronal Macroscopic Quantum Coherence in the Brain Cortex! The Role of the Intrasynaptic Adhesive Proteins Beta-Neurexin and Neuroligin-.Danko Georgiev - unknown
    There are many blank areas in understanding the brain dynamics and especially how it gives rise to consciousness. Quantum mechanics is believed to be capable of explaining the enigma of conscious experience, however till now there is not good enough model considering both the data from clinical neurology and having some explanatory power! In this paper is presented a novel model in defence of macroscopic quantum events within and between neural cells. The beta-neurexin-neuroligin-1 link is claimed to be not just (...)
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  45. Distance and Similarity Measures in Generalised Quantum Theory.Dieter Gernert - 2011 - Axiomathes 21 (2):303-313.
    A summary of recent experimental results shows that entanglement can be generated more easily than before, and that there are improved chances for its persistence. An eminent finding of Generalised Quantum Theory is the insight that the notion of entanglement can be extended, such that, e.g., psychological or psychophysical problem areas can be included, too. First, a general condition for entanglement to occur is given by the term ‘common prearranged context’. A formalised treatment requires a quantitative definition of the similarity (...)
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  46. The Puzzling Entanglement of Schrödinger's Wave Function.G. C. Ghirardi, A. Rimini & T. Weber - 1988 - Foundations of Physics 18 (1):1-27.
    A brief review of the conceptual difficulties met by the quantum formalism is presented. The main attempts to overcome these difficulties are considered and their limitations are pointed out. A recent proposal based on the assumption of the occurrence of a specific type of wave function collapse is discussed and its consequences for the above-mentioned problems are analyzed.
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  47. Making Quantum Theory Compatible with Realism.GianCarlo Ghirardi - 2002 - Foundations of Science 7 (1-2):11-47.
    After a brief account of theway quantum theory deals with naturalprocesses, the crucial problem that such atheory meets, the measurement or, better, themacro-objectification problem is discussed.The embarrassing aspects of the occurrence ofentangled states involving macroscopic systemsare analyzed in details. The famous example ofSchroedinger's cat is presented and it ispointed out how the combined interplay of thesuperposition principle and the ensuingentanglement raises some serious difficultiesin working out a satisfactory quantum worldview, agreeing with our definiteperceptions. The orthodox solution to themacro-objectification problem, i.e. (...)
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  48. Causality, Measurement, and Elementary Interactions.Edward J. Gillis - 2011 - Foundations of Physics 41 (12):1757-1785.
    Signal causality, the prohibition of superluminal information transmission, is the fundamental property shared by quantum measurement theory and relativity, and it is the key to understanding the connection between nonlocal measurement effects and elementary interactions. To prevent those effects from transmitting information between the generating and observing process, they must be induced by the kinds of entangling interactions that constitute measurements, as implied in the Projection Postulate. They must also be nondeterministic as reflected in the Born Probability Rule. The nondeterminism (...)
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  49. Isomorphism Between the Peres and Penrose Proofs of the BKS Theorem in Three Dimensions.Elizabeth Gould & P. K. Aravind - 2010 - Foundations of Physics 40 (8):1096-1101.
    It is shown that the 33 complex rays in three dimensions used by Penrose to prove the Bell-Kochen-Specker theorem have the same orthogonality relations as the 33 real rays of Peres, and therefore provide an isomorphic proof of the theorem. It is further shown that the Peres and Penrose rays are just two members of a continuous three-parameter family of unitarily inequivalent rays that prove the theorem.
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  50. Effect Algebras Are Not Adequate Models for Quantum Mechanics.Stan Gudder - 2010 - Foundations of Physics 40 (9-10):1566-1577.
    We show that an effect algebra E possess an order-determining set of states if and only if E is semiclassical; that is, E is essentially a classical effect algebra. We also show that if E possesses at least one state, then E admits hidden variables in the sense that E is homomorphic to an MV-algebra that reproduces the states of E. Both of these results indicate that we cannot distinguish between a quantum mechanical effect algebra and a classical one. Hereditary (...)
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