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  1. added 2018-02-18
    Are Quantum Particles Objects?Simon Saunders - 2006 - Analysis 66 (1):52-63.
    Particle indistinguishability has always been considered a purely quantum mechanical concept. In parallel, indistinguishable particles have been thought to be entities that are not properly speaking objects at all. I argue, to the contrary, that the concept can equally be applied to classical particles, and that in either case particles may (with certain exceptions) be counted as objects even though they are indistinguishable. The exceptions are elementary bosons (for example photons).
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  2. added 2018-02-18
    On the Explanation for Quantum Statistics.Simon Saunders - 2006 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 37 (1):192-211.
    The concept of classical indistinguishability is analyzed and defended against a number of well-known criticisms, with particular attention to the Gibbs’paradox. Granted that it is as much at home in classical as in quantum statistical mechanics, the question arises as to why indistinguishability, in quantum mechanics but not in classical mechanics, forces a change in statistics. The answer, illustrated with simple examples, is that the equilibrium measure on classical phase space is continuous, whilst on Hilbert space it is discrete. The (...)
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  3. added 2017-11-09
    Quantum Metaphysical Indeterminacy.Claudio Calosi & Jessica Wilson - 2018 - Philosophical Studies:1-29.
    On many currently live interpretations, quantum mechanics violates the classical supposition of value definiteness, according to which the properties of a given particle or system have precise values at all times. Here we consider whether either metaphysical supervaluationist or determinable-based approaches to metaphysical indeterminacy can accommodate quantum metaphysical indeterminacy (QMI). We start by discussing the standard theoretical indicator of QMI, and distinguishing three seemingly different sources of QMI (S1). We then show that previous arguments for the conclusion that metaphysical supervaluationism (...)
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  4. added 2017-11-03
    Against Quantum Indeterminacy.David Glick - 2017 - Thought: A Journal of Philosophy 6 (3):204-213.
    A growing literature is premised on the claim that quantum mechanics provides evidence for metaphysical indeterminacy. But does it? None of the currently fashionable realist interpretations involve fundamental indeterminacy and the ‘standard interpretation’, to the extent that it can be made out, doesn't require indeterminacy either.
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  5. added 2017-01-26
    Indeterminacy and Enlanglemenl: The Challenge of Quantum.Jeffrey Bub - 2003 - In Peter Clark & Katherine Hawley (eds.), Philosophy of Science Today. Oxford University Press. pp. 236.
  6. added 2017-01-15
    Indeterminism and Indeterminacy.K. Hawley - 1998 - Analysis 58 (2):101-106.
    E.J. Lowe claims that quantum physics provides examples of ontic indeterminacy, of vagueness in the world. Any such claim must confront the Evans-Salmon argument to the effect that the notion of ontic indeterminacy is simply incoherent (Evans 1978, Salmon 1981: 243-46). Lowe argues that a standard version of the Evans-Salmon argument fails quite generally (Lowe 1994). Harold Noonan (1995) has outlined a non-standard version of the argument, but Lowe argues that this non-standard version fails for specifically quantum mechanical reasons (Lowe (...)
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  7. added 2016-10-01
    Quantum Set Theory Extending the Standard Probabilistic Interpretation of Quantum Theory.Masanao Ozawa - 2016 - New Generation Computing 34 (1):125-152.
    The notion of equality between two observables will play many important roles in foundations of quantum theory. However, the standard probabilistic interpretation based on the conventional Born formula does not give the probability of equality between two arbitrary observables, since the Born formula gives the probability distribution only for a commuting family of observables. In this paper, quantum set theory developed by Takeuti and the present author is used to systematically extend the standard probabilistic interpretation of quantum theory to define (...)
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  8. added 2016-06-24
    The Uncertainty Relations in Quantum Mechanics.D. Sen - 2014 - Current Science 107 (7):203-218.
    The notion of uncertainty in the description of a physical system has assumed prodigious importance in the development of quantum theory. Overcoming the early misunderstanding and confusion, the concept grew continuously and still remains an active and fertile research field. Curious new insights and correlations are gained and developed in the process with the introduction of new ‘measures’ of uncertainty or indeterminacy and the development of quantum measurement theory. In this article we intend to reach a fairly uptodate status report (...)
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  9. added 2016-03-16
    Les interprétations de la mécanique quantique : une vue d'ensemble introductive.Thomas Boyer-Kassem - 2015 - Implications Philosophiques.
    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 métaphysiques, radicalement différentes. L'existence d'un hasard fondamental, ou d'une multitude de mondes en-dehors du nôtre, dépend ainsi de l'interprétation adoptée. Cet article, en s'appuyant sur le livre Boyer-Kassem (2015), Qu'est-ce que la mécanique quantique ?, présente trois (...)
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  10. added 2016-03-15
    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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  11. added 2016-02-03
    Are There Indeterminate States of Affairs? Yes.Jessica M. Wilson - forthcoming - In Elizabeth Barnes (ed.), Current Controversies in Metaphysics. Taylor & Francis.
    Here I compare two accounts of metaphysical indeterminacy (MI): first, the 'meta-level' approach described by Elizabeth Barnes and Ross Cameron in the companion to this paper, on which every state of affairs (SOA) is itself precise/determinate, and MI is a matter of its being indeterminate which determinate SOA obtains; second, my preferred 'object-level' determinable-based approach, on which MI is a matter of its being determinate---or just plain true---that an indeterminate SOA obtains, where an indeterminate SOA is one whose constitutive object (...)
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  12. added 2015-05-20
    Spin as a Determinable.Johanna Wolff - 2015 - Topoi 34 (2):379-386.
    In this paper I aim to answer two questions: Can spin be treated as a determinable? Can a treatment of spin as a determinable be used to understand quantum indeterminacy? In response to the first question I show that the relations among spin number, spin components and spin values cannot be captured by a single determination relation; instead we need to look at spin number and spin value separately. In response to the second question I discuss three ways in which (...)
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  13. added 2015-04-25
    Vague Identity and Quantum Indeterminacy. French & Krause - 1995 - Analysis 55 (1):20--6.
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  14. added 2015-04-06
    Dialogue in the Crisis of Representation: Realism and Antirealism in the Context of the Conversation Between Theologians and Quantum Physicists in Göttingen 1949-1961.Stefan Djupsjöbacka - 2005 - Åbo Akademi University Press.
    The aim of this study is to analyse the content of the interdisciplinary conversations in Göttingen between 1949 and 1961. The task is to compare models for describing reality presented by quantum physicists and theologians. Descriptions of reality in different disciplines are conditioned by the development of the concept of reality in philosophy, physics and theology. Our basic problem is stated in the question: How is it possible for the intramental image to match the external object?
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  15. added 2015-04-06
    Interpreting Bodies.Elena Castellani (ed.) - 1998 - Princeton University Press.
    Bewildering features of modern physics, such as relativistic space-time structure and the peculiarities of so-called quantum statistics, challenge traditional ways of conceiving of objects in space and time. Interpreting Bodies brings together essays by leading philosophers and scientists to provide a unique overview of the implications of such physical theories for questions about the nature of objects. The collection combines classic articles by Max Born, Werner Heisenberg, Hans Reichenbach, and Erwin Schrodinger with recent contributions, including several papers that have never (...)
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  16. added 2015-04-06
    Quantum Physics and East-West Rapprochement.C. T. K. Chari - 1955 - Philosophy East and West 5 (1):61-67.
  17. added 2015-03-23
    Concealed Chora in the Thought of Cornelius Castoriadis: A Bastard Comment on Trans-Regional Creation.Sean McMorrow - 2012 - Cosmos and History 8 (2):117-129.
    The chora has proven to be an obscure concept in contemporary philosophy. Cornelius Castoriadis seemed to retreat from the edge of its significance within his work, a significance that is capable of opening up another turn in the labyrinth of his thought. A clear interrogation into the presence of the chora in his thought has, still, yet to be elucidated. This paper proceeds with a notion of the chora defined for the purpose of highlighting its relevance for Castoriadis’ thought, taking (...)
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  18. added 2015-02-05
    A Structural Theory of Everything.Brian D. Josephson - manuscript
    (v.3) In this paper it is argued that Barad's Agential Realism, an approach to quantum mechanics originating in the philosophy of Niels Bohr, can be the basis of a 'theory of everything' consistent with a proposal of Wheeler that 'observer-participancy is the foundation of everything'. On the one hand, agential realism can be grounded in models of self- organisation such as the hypercycles of Eigen, while on the other agential realism, by virtue of the 'discursive practices' that constitute one aspect (...)
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  19. added 2015-01-22
    The Elusive Source of Quantum Speedup.Vlatko Vedral - 2010 - Foundations of Physics 40 (8):1141-1154.
    We discuss two qualities of quantum systems: various correlations existing between their subsystems and the distinguishability of different quantum states. This is then applied to analysing quantum information processing. While quantum correlations, or entanglement, are clearly of paramount importance for efficient pure state manipulations, mixed states present a much richer arena and reveal a more subtle interplay between correlations and distinguishability. The current work explores a number of issues related with identifying the important ingredients needed for quantum information processing. We (...)
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  20. added 2015-01-04
    Interference and Interaction in Schrödinger's Wave Mechanics.Hans-Jürgen Treder & Horst-Heino von Borzeszkowski - 1988 - Foundations of Physics 18 (1):77-93.
    Reminiscing on the fact that E. Schrödinger was rooted in the same physical tradition as M. Planck and A. Einstein, some aspects of his attitude to quantum mechanics are discussed. In particular, it is demonstrated that the quantum-mechanical paradoxes assumed by Einstein and Schrödinger should not exist, but that otherwise the epistemological problem of physical reality raised in this context by Einstein and Schrödinger is fundamental for our understanding of quantum theory. The nonexistence of such paradoxes just shows that quantum-mechanical (...)
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  21. added 2014-12-30
    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,.
  22. added 2014-12-30
    Quantum Information Theory & the Foundations of Quantum Mechanics.Christopher Gordon Timpson - 2004 - Oxford University Press.
    Quantum Information Theory and the Foundations of Quantum Mechanics is a conceptual analysis of one of the most prominent and exciting new areas of physics, providing the first full-length philosophical treatment of quantum information theory and the questions it raises for our understanding of the quantum world. -/- Beginning from a careful, revisionary, analysis of the concepts of information in the everyday and classical information-theory settings, Christopher G. Timpson argues for an ontologically deflationary account of the nature of quantum information. (...)
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  23. added 2014-12-28
    Is Indistinguishability in Quantum Mechanics Conventional?Paul Teller & Michael Redhead - 2000 - Foundations of Physics 30 (6):951-957.
    Darrin Belousek has argued that the indistinguishability of quantum particles is conventional “in the Duhemian–Einsteinian sense,” in part by critially examining prior arguments given by Redhead and Teller. Belousek's discussion provides a useful occasion to clarify some of those arguments, acknowledge respects in which they were misleading, and comment on how they can be strengthened. We also comment briefly on the relevant sense of “conventional.”.
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  24. added 2014-12-28
    Quantum Physics, the Identity of Indiscernibles, and Some Unanswered Questions.Paul Teller - 1983 - Philosophy of Science 50 (2):309-319.
  25. added 2014-12-16
    Multisolipsism.Andrew Soltau - unknown
    A perspective on Everett's relative state formulation is proposed, leading to a simple relational quantum mechanics. There are inevitably a large number of different versions of the world in which a specific observer could exist, and in the universe of the unitary wave function they are all existing and coincident. If these different versions of the world are superposed, the effective physical environment in the functional frame of reference of this observer would be highly indeterminate, since every possible variation of (...)
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  26. added 2014-12-10
    Distinguishable Equivalent Particles with Symmetrized Wave Functions.Armand Siegel - 1970 - Foundations of Physics 1 (1):57-68.
    The quantum formalism ofdistinguishable, yetequivalent particles (with symmetric or antisymmetric wave functions) is here worked out. The result is an entirely explicit formulation of the way in which classical mechanics emerges from quantum mechanics for such particles. Distinguishability is achieved at the cost of dynamical precision; the two are, in fact, complementary.
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  27. added 2014-12-03
    The Rise and Fall of Time-Symmetrized Quantum Mechanics.W. David Sharp & Niall Shanks - 1993 - Philosophy of Science 60 (3):488-499.
    In the context of a discussion of time symmetry in the quantum mechanical measurement process, Aharonov et al. (1964) derived an expression concerning probabilities for the outcomes of measurements conducted on systems which have been pre- and postselected on the basis of both preceding and succeeding measurements. Recent literature has claimed that a resulting "time-symmetrized" interpretation of quantum mechanics has significant implications for some basic issues, such as contextuality and determinateness, in elementary, nonrelativistic quantum mechanics. Bub and Brown (1986) have (...)
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  28. added 2014-11-23
    Towards a Galoisian Lnterpretation of Heisenberg Lndeterminacy Principle.Julien Page & Gabriel Catren - 2014 - Foundations of Physics 44 (12):1289-1301.
    We revisit Heisenberg indeterminacy principle in the light of the Galois–Grothendieck theory for the case of finite abelian Galois extensions. In this restricted framework, the Galois–Grothendieck duality between finite K-algebras split by a Galois extension \ and finite \\) -sets can be reformulated as a Pontryagin duality between two abelian groups. We define a Galoisian quantum model in which the Heisenberg indeterminacy principle can be understood as a manifestation of a Galoisian duality: the larger the group of automorphisms \ of (...)
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  29. added 2014-11-20
    “Principle of Indistinguishability” and Equations of Motion for Particles with Spin.Mauro Napsuciale - 2003 - Foundations of Physics 33 (5):741-768.
    In this work we review the derivation of Dirac and Weinberg equations based on a “principle of indistinguishability” for the (j,0) and (0,j) irreducible representations (irreps) of the homogeneous Lorentz group (HLG). We generalize this principle and explore its consequences for other irreps containing j≥1. We rederive Ahluwalia–Kirchbach equation using this principle and conclude that it yields $\mathcal{O}(p^{2j} )$ equations of motion for any representation containing spin j and lower spins. We also use the obtained generators of the HLG for (...)
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  30. added 2014-11-19
    Non-Reflexive Logical Foundation for Quantum Mechanics.Newton C. A. da Costa & Christian de Ronde - 2014 - Foundations of Physics 44 (12):1369-1380.
    On the one hand, non-reflexive logics are logics in which the principle of identity does not hold in general. On the other hand, quantum mechanics has difficulties regarding the interpretation of ‘particles’ and their identity, also known in the literature as ‘the problem of indistinguishable particles’. In this article, we will argue that non-reflexive logics can be a useful tool to account for such quantum indistinguishability. In particular, we will provide a particular non-reflexive logic that can help us to analyze (...)
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  31. added 2014-11-18
    Do Quantum States Evolve? Apropos of Marchildon's Remarks.Ulrich Mohrhoff - 2004 - Foundations of Physics 34 (1):75-97.
    Marchildon’s (favorable) assessment (quant-ph/0303170, to appear in Found. Phys.) of the Pondicherry interpretation of quantum mechanics raises several issues, which are addressed. Proceeding from the assumption that quantum mechanics is fundamentally a probability algorithm, this interpretation determines the nature of a world that is irreducibly described by this probability algorithm. Such a world features an objective fuzziness, which implies that its spatiotemporal differentiation does not “go all the way down”. This result is inconsistent with the existence of an evolving instantaneous (...)
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  32. added 2014-11-15
    The Physical Principles of the Quantum Theory.Donald H. Menzel & David Layzer - 1949 - Philosophy of Science 16 (4):303-324.
  33. added 2014-11-14
    Quantum Superposition Principle Justified in a New Non-Aristotelian Finitary Logic.Radhakrishnan Srinivasan - unknown
    In the proposed non-Aristotelian finitary logic (NAFL), truths for formal propositions can exist only with respect to axiomatic theories, essentially as temporary axiomatic declarations in the human mind. An undecidable proposition $P$ in a consistent NAFL theory T is true/false with respect to T if and only if it has been axiomatically declared as true/false by virtue of its provability/refutability in an interpretation T* of T. In the absence of any such axiomatic declarations, $P$ is in a superposed state of (...)
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  34. added 2014-11-14
    Quantum Superposition Justified in a New Non-Aristotelian Finitary Logic.Radhakrishnan Srinivasan - unknown
    A new non-Aristotelian finitary logic (NAFL) is proposed in which it is postulated that the truth or falseness of an undecidable proposition in a theory T is meaningful only when asserted axiomatically; there is no truth other than axiomatic truth. It is shown that under this hypothesis, the law of the excluded middle and the law of non-contradiction for such undecidable propositions must fail to be theorems of T. The phenomenon of quantum superposition is thus explained in NAFL. It is (...)
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  35. added 2014-11-13
    On the Phenomenology of Quantum-Mechanical Superpositions.D. Albert - 1997 - Poznan Studies in the Philosophy of the Sciences and the Humanities 55:196-215.
  36. added 2014-11-06
    Interactionism, Energy Conservation, and the Violation of Physical Laws.Ulrich Mohrhoff - 1997 - Physics Essays 10 (4):651–665.
    The law of energy conservation is either analytic and not threatened by psychophysical interactionism or contingent upon the causal closure of the physical world which interactionism denies. In either case, interactionism implies departures from the laws of physics, despite attempts to demonstrate the contrary by exploiting the loophole of quantum mechanical indeterminism. These departures are best formulated in terms of modifications, by the conscious self, of the electromagnetic interactions between particles. The electromagnetic vector potential is essentially a summary representation of (...)
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  37. added 2014-11-04
    Deep Metaphysical Indeterminacy.Bradford Skow - 2010 - Philosophical Quarterly 60 (241):851 - 858.
    A recent theory of metaphysical indeterminacy says that metaphysical indeterminacy is multiple actuality: there is metaphysical indeterminacy when there are many 'complete precisifications of reality'. But it is possible for there to be metaphysical indeterminacy even when it is impossible to precisify reality completely. The orthodox interpretation of quantum mechanics illustrates this possibility. So this theory of metaphysical indeterminacy is not adequate.
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  38. added 2014-10-28
    The Determinism of Quantum-Mechanical Probability Statements.Aristotle G. M. Scoledes - 1972 - Philosophy of Science 39 (2):195-203.
    A presentation showing how the statements which relate to microphysical objects as they are different from the statements of classical mechanics is made. The determinism of classical and of quantum-mechanical theories is qualified. A (crucial) distinction between causality and determinism is given. Detailed analyses of diffraction as a result of single and double-slit demonstrations point to paradoxes arising from the use of particle or wave models, respectively, for photons and electrons. The compromising wave-packet model is underscored. The meanings for the (...)
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  39. added 2014-10-28
    An Examination of the Quantum Theories. I.William Marias Malisoff - 1934 - Philosophy of Science 1 (1):71-77.
  40. added 2014-10-28
    An Examination of the Quantum Theories III.William Marias Malisoff - 1934 - Philosophy of Science 1 (4):398-408.
  41. added 2014-10-27
    An Examination of the Quantum Theories. IV.William Marias Malisoff - 1935 - Philosophy of Science 2 (3):334-343.
  42. added 2014-10-17
    Partitions and Objective Indefiniteness.David Ellerman - manuscript
    Classical physics and quantum physics suggest two meta-physical types of reality: the classical notion of a objectively definite reality with properties "all the way down," and the quantum notion of an objectively indefinite type of reality. The problem of interpreting quantum mechanics (QM) is essentially the problem of making sense out of an objectively indefinite reality. These two types of reality can be respectively associated with the two mathematical concepts of subsets and quotient sets (or partitions) which are category-theoretically dual (...)
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  43. added 2014-10-16
    Review. Interpreting Bodies: Classical and Quantum Objects in Modern Physics. E Castellani [Ed]. [REVIEW]Ej Lowe - 2000 - British Journal for the Philosophy of Science 51 (2):353-355.
  44. added 2014-10-15
    Exchange Degeneracy of Relativistic Two-Particle Quantum States.S. Rupp, S. Hunzinger & M. Sorg - 2002 - Foundations of Physics 32 (5):705-750.
    The phenomenon of exchange degeneracy of 2-particle quantum states is studied in detail within the framework of Relativistic Schrödinger Theory (RST). In conventional quantum theory this kind of degeneracy refers to the circumstance that, under neglection of the interparticle interactions, symmetric and anti-symmetric 2-particle states have identical energy eigenvalues. However the analogous effect of RST degeneracy is rather related to the emergence of two types of mixtures (positive and negative) in connection with the vanishing or non-vanishing of certain components of (...)
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  45. added 2014-10-14
    The Logic of Identity: Distinguishability and Indistinguishability in Classical and Quantum Physics.Dennis Dieks - 2014 - Foundations of Physics 44 (12):1302-1316.
    The suggestion that particles of the same kind may be indistinguishable in a fundamental sense, even so that challenges to traditional notions of individuality and identity may arise, has first come up in the context of classical statistical mechanics. In particular, the Gibbs paradox has sometimes been interpreted as a sign of the untenability of the classical concept of a particle and as a premonition that quantum theory is needed. This idea of a ‘quantum connection’ stubbornly persists in the literature, (...)
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  46. added 2014-10-12
    On Witness-Discernibility of Elementary Particles.Oystein Linnebo & F. A. Muller - 2013 - Erkenntnis 78 (5):1133-1142.
    In the context of discussions about the nature of ‘identical particles’ and the status of Leibniz’s Principle of the Identity of Indiscernibles in Quantum Mechanics, a novel kind of physical discernibility has recently been proposed, which we call witness-discernibility. We inquire into how witness-discernibility relates to known kinds of discernibility. Our conclusion will be that for a wide variety of cases, including the intended quantum-mechanical ones, witness-discernibility collapses extensionally to absolute discernibility, that is, to discernibility by properties.
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  47. added 2014-10-10
    Quantum Mechanics and Ethical Antirealism: A Counter-Analogy to Boyd.Justin Lawson - unknown
    In his paper How to Be a Moral Realist Boyd attempts to show how cases of ethical indeterminacy can be accounted for from an ethical realist’s standpoint. Boyd describes cases of extensional vagueness in the life-sciences which arise from knowable and definite underlying structures and draws an analogy to ethics to argue his case. This paper argues that an equally compelling analogy can be drawn between another type of scientific indeterminacy – that in quantum mechanics – and the related ethical (...)
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  48. added 2014-10-02
    Quantum Reality as Unrealised Possibility: Review of Quantum Theory and the Flight From Realism: Philosophical Responses to Quantum Mechanics by Christopher Norris. [REVIEW]Doug Porpora - 2000 - Aletheia 3 (2).
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  49. added 2014-09-12
    Spin-Zero Particles Must Be Bosons: A New Proof Within Nonrelativistic Quantum Mechanics. [REVIEW]Murray Peshkin - 2006 - Foundations of Physics 36 (1):19-29.
    The key assumption is that of Leinaas and Myrheim and of Berry and Robbins, here specialized to spin zero: for n particles, the argument of the wave function should be the unordered multiplet {r 1,r 2,...,r n }. I also make use of the requirement that wave functions in the domain of the Hamiltonian must be continuous functions of the spatial variables. The new proof presented here has advantages of simplicity and transparency in comparison with earlier work based on the (...)
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  50. added 2014-08-25
    The Principle of the Identity of Indiscernibles and Quantum Mechanics.James Ladyman & Tomasz Bigaj - 2010 - Philosophy of Science 77 (1):117-136.
    It is argued that recent discussion of the principle of the identity of indiscernibles (PII) and quantum mechanics has lost sight of the broader philosophical motivation and significance of PII and that the `received view' of the status of PII in the light of quantum mechanics survives recent criticisms of it by Muller, Saunders, and Seevinck.
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1 — 50 / 97