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Bohmian mechanics

Stanford Encyclopedia of Philosophy (2008)

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  1. A Proposal for a Coherent Ontology of Fundamental Entities.Diego Romero-Maltrana, Federico Benitez & Cristian Soto - 2018 - Foundations of Science 23 (4):705-717.
    We argue that the distinction between framework and interaction theories should be taken carefully into consideration when dealing with the philosophical implications of fundamental theories in physics. In particular, conclusions concerning the nature of reality can only be consistently derived from assessing the ontological and epistemic purport of both types of theories. We put forward an epistemic form of realism regarding framework theories, such as Quantum Field Theory. The latter, indeed, informs us about the general properties of quantum fields, laying (...)
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  • Quantum metaphysical indeterminacy.Claudio Calosi & Jessica Wilson - 2019 - Philosophical Studies 176 (10):2599–2627.
    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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  • The crisis of intelligibility in physics and the prospects of a new form of scientific rationality.Paavo Pylkkänen - 2017 - In Niiniluoto Ilkka & Wallgren Thomas (eds.), On the Human Condition: Philosophical Essays in Honour of the Centennial Anniversary of Georg Henrik von Wright. Acta Philosophica Fennica vol 93. The Philosophical Society of Finland.
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  • The orbital: a pivotal concept in the relationship between chemistry and physics? A comment to the work by Fortin and coauthors.Giovanni Villani, Elena Ghibaudi & Luigi Cerruti - 2017 - Foundations of Chemistry 20 (2):89-97.
    The present work is a comment of a recent paper by Fortin and coauthors in which the authors propose the introduction of Bohmian mechanics in the philosophy of chemistry and the use of standard quantum mechanics as a mere instrument of prediction. This way would allow overcoming the obstacles found in linking molecular chemistry and quantum mechanics. Starting from some remarks on the orbital concept, we highlight and discuss some general issues that need to be taken into account when two (...)
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  • Is there room in quantum ontology for a genuine causal role for consciousness?Paavo Pylkkänen - 2017 - In Emmanuel Haven & Andrei Khrennikov (eds.), The Palgrave Handbook of Quantum Models in Social Science: Applications and Grand Challenges. Palgrave Macmillan. pp. 293-317.
    Western philosophy and science have a strongly dualistic tradition regarding the mental and physical aspects of reality, which makes it difficult to understand their possible causal relations. In recent debates in cognitive neuroscience it has been common to claim on the basis of neural experiments that conscious experiences are causally inefficacious. At the same time there is much evidence that consciousness does play an important role in guiding behavior. The author explores whether a new way of understanding the causal role (...)
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  • Quantum theory, active information and the mind-matter problem.Paavo Pylkkänen - 2016 - In Pylkkänen Paavo (ed.), Contextuality from Quantum Physics to Psychology. World Scientific. pp. 325-334.
    Bohm and Hiley suggest that a certain new type of active information plays a key objective role in quantum processes. This paper discusses the implications of this suggestion to our understanding of the relation between the mental and the physical aspects of reality.
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  • Bohm's approach and individuality.Paavo Pylkkänen, Basil Hiley & Ilkka Pättiniemi - 2016 - In Thomas Pradeu & Alexandre Guay (eds.), Individuals Across The Sciences. New York, État de New York, États-Unis: Oxford University Press.
    Ladyman and Ross argue that quantum objects are not individuals and use this idea to ground their metaphysical view, ontic structural realism, according to which relational structures are primary to things. LR acknowledge that there is a version of quantum theory, namely the Bohm theory, according to which particles do have denite trajectories at all times. However, LR interpret the research by Brown et al. as implying that "raw stuff" or haecceities are needed for the individuality of particles of BT, (...)
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  • The quantum epoché.Paavo Pylkkänen - 2015 - Progress in Biophysics and Molecular Biology 119:332-340.
    The theme of phenomenology and quantum physics is here tackled by examining some basic interpretational issues in quantum physics. One key issue in quantum theory from the very beginning has been whether it is possible to provide a quantum ontology of particles in motion in the same way as in classical physics, or whether we are restricted to stay within a more limited view of quantum systems, in terms of complementary but mutually exclusive phenomena. In phenomenological terms we could describe (...)
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  • Mahdollisuus, välttämättömyys ja luodut ikuiset totuudet Descartesin filosofiassa.Forsman Jan - 2016 - In Ilkka Niiniluoto, Tuomas Tahko & Teemu Toppinen (eds.), Mahdollisuus. Helsinki: Philosophical Society of Finland. pp. 120-129.
    Tässä artikkelissa käsittelen Descartesin ikuisten totuuksien välttämättömyyteen liittyvää ongelmaa. Teoksessa Mietiskelyjä ensimmäisestä filosofiasta (1641–1642) Descartes nostaa esiin käsitteen ikuisista totuuksista, käyttäen esimerkkinään kolmiota. Kolmion muuttumattomaan ja ikuiseen luontoon kuuluu esimerkiksi, että sen kolme kulmaa ovat yhteenlaskettuna 180°. Se on totta kolmiosta, vaikka yhtään yksittäistä kolmiota ei olisi koskaan ollutkaan olemassa. Eräät ajattelemieni asioiden piirteet ovat siis Descartesin mukaan ajattelustani riippumattomia. Ikuisia totuuksia ovat ainakin matemaattiset ja geometriset tosiseikat sekä ristiriidan laki. Samoin Descartesin kuuluisa lause “ajattelen, siis olen” lukeutuu ikuisten totuuksien (...)
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  • A Dilemma For The Emergence Of Spacetime In Canonical Quantum Gravity.Vincent Lam & Michael Esfeld - 2013 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 44 (3):286-293.
    The procedures of canonical quantization of the gravitational field apparently lead to entities for which any interpretation in terms of spatio-temporal localization or spatio-temporal extension seems difficult. This fact is the main ground for the suggestion that can often be found in the physics literature on canonical quantum gravity according to which spacetime may not be fundamental in some sense. This paper aims to investigate this radical suggestion from an ontologically serious point of view in the cases of two standard (...)
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  • Is Priscilla, the trapped positron, an individual? Quantum physics, the use of names, and individuation.Décio Krause - 2011 - Arbor 187 (747):61-66.
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  • Ecstatic Language of Early Daoism: A Sufi Point of View.Esmaeil Radpour - 2015 - Transcendent Philosophy Journal 16:213-230.
    Various esoteric traditions apply different modes of expression for the same metaphysical truths. We may name the two most known esoteric languages as ecstatic and scholastic. Early Daoist use of reverse symbolism as for metaphysical truths and its critical way of viewing formalist understanding of traditional teachings, common virtues and popular beliefs show that it applies an ecstatic language, which, being called shaṭḥ in Sufi terminology, has a detailed literature and technical description in Sufism. This article tries, after a short (...)
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  • GRW as an ontology of dispositions.Mauro Dorato & Michael Esfeld - 2010 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 41 (1):41-49.
    The paper argues that the formulation of quantum mechanics proposed by Ghirardi, Rimini and Weber (GRW) is a serious candidate for being a fundamental physical theory and explores its ontological commitments from this perspective. In particular, we propose to conceive of spatial superpositions of non-massless microsystems as dispositions or powers, more precisely propensities, to generate spontaneous localizations. We set out five reasons for this view, namely that (1) it provides for a clear sense in which quantum systems in entangled states (...)
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  • Persistence, Vagueness, and Location.Antony Eagle - 2016 - Journal of Philosophy 113 (10):507-532.
    This article discusses two arguments in favor of perdurance. The first is Sider’s argument from vagueness, “one of the most powerful” in favor of perdurantism. I make the observation that endurantists have principled grounds to claim that the argument is unsound, at least if endurance is formulated in locative rather than mereological terms. Having made this observation, I use it to emphasize a somewhat neglected difference between endurantists and perdurantists with respect to their views on material objects. These views, in (...)
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  • Quantum mechanics as a deterministic theory of a continuum of worlds.Kim Joris Boström - 2015 - Quantum Studies: Mathematics and Foundations 2 (3):315-347.
    A non-relativistic quantum mechanical theory is proposed that describes the universe as a continuum of worlds whose mutual interference gives rise to quantum phenomena. A logical framework is introduced to properly deal with propositions about objects in a multiplicity of worlds. In this logical framework, the continuum of worlds is treated in analogy to the continuum of time points; both “time” and “world” are considered as mutually independent modes of existence. The theory combines elements of Bohmian mechanics and of Everett’s (...)
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  • Putnam looks at quantum mechanics.Christian Wuthrich - unknown
    Hilary Putnam has argued that from a realist perspective, quantum mechanics stands in need of an interpretation. Ironically, this hypothesis may appear vulnerable against arguments drawing on Putnam's own work. Nancy Cartwright has urged that his 1962 essay on the meaning of theoretical terms suggests that quantum mechanics needs no interpretation and thus stands in tension with his claim of three years later. She furthermore contends that this conflict should be resolved in favour of the earlier work, as quantum mechanics, (...)
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  • The reality of relations: the case from quantum physics.Michael Esfeld - unknown
    As far as classical physics is concerned, it is possible to trace causal relations between physical objects back to intrinsic properties of these objects. On this view, causal relations turn out to be internal instead of external relations, supervening on intrinsic properties of the relata. However, one can raise doubts about this view already in Newtonian mechanics. The decisive blow to this view comes from quantum physics, with Bell’s theorem proving that no dynamics based on local, intrinsic properties of quantum (...)
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  • Reality and the role of the wave function in quantum theory.Sheldon Goldstein & Nino Zanghi - unknown
    The most puzzling issue in the foundations of quantum mechanics is perhaps that of the status of the wave function of a system in a quantum universe. Is the wave function objective or subjective? Does it represent the physical state of the system or merely our information about the system? And if the former, does it provide a complete description of the system or only a partial description? We shall address these questions here mainly from a Bohmian perspective, and shall (...)
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  • Consistent quantum measurements.Robert B. Griffiths - 2015 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 52 (Part B):188-197.
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  • The Propensity Interpretation of Probability: A Re-evaluation.Joseph Berkovitz - 2015 - Erkenntnis 80 (S3):629-711.
    Single-case and long-run propensity theories are among the main objective interpretations of probability. There have been various objections to these theories, e.g. that it is difficult to explain why propensities should satisfy the probability axioms and, worse, that propensities are at odds with these axioms, that the explication of propensities is circular and accordingly not informative, and that single-case propensities are metaphysical and accordingly non-scientific. We consider various propensity theories of probability and their prospects in light of these objections. We (...)
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  • Physics and Intrinsic Properties.Michael Esfeld - 2014 - In Robert M. Francescotti (ed.), Companion to Intrinsic Properties. Boston: De Gruyter. pp. 253-270.
    The paper sketches out an ontology of physics in terms of matter being primitive stuff distributed in space and all the properties physics is committed to being dispositions that fix the temporal development of the distribution of matter in space. Whereas such properties can be conceived as intrinsic properties of particles in classical mechanics, in quantum physics, there is a holistic property or structure that relates all matter and that fixes its temporal development.
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  • Quantum Mechanics and Intentionality.Godehard Brüntrup - 2014 - In Antonella Corradini & Uwe Meixner (eds.), Quantum Physics Meets the Philosophy of Mind: New Essays on the Mind-Body Relation in Quantum-Theoretical Perspective. Boston: De Gruyter. pp. 35-49.
    An essay on the connection between the mind-body-problem and quantum mechanics.
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  • Quantum Mechanics and Paradigm Shifts.Valia Allori - 2015 - Topoi 34 (2):313-323.
    It has been argued that the transition from classical to quantum mechanics is an example of a Kuhnian scientific revolution, in which there is a shift from the simple, intuitive, straightforward classical paradigm, to the quantum, convoluted, counterintuitive, amazing new quantum paradigm. In this paper, after having clarified what these quantum paradigms are supposed to be, I analyze whether they constitute a radical departure from the classical paradigm. Contrary to what is commonly maintained, I argue that, in addition to radical (...)
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  • Oltre la fisica normale. Interpretazioni alternative e teorie non standard nella fisica moderna.Isabella Tassani, Gino Tarozzi, Alessandro Afriat, Gennaro Auletta, Stefano Bordoni, Marco Buzzoni, Claudio Calosi, Vincenzo Fano, Alberto Cappi, Giovanni Macchia, Fabio Minazzi & Arcangelo Rossi (eds.) - 2013 - ISONOMIA - Epistemologica.
    Nella sua straordinaria opera scientifica, Franco Selleri si è sempre opposto alla rinuncia alla comprensione della struttura della realtà e della natura degli oggetti fisici, che egli considera come l’elemento caratterizzante delle principali teorie della fisica del Novecento e che è stata stigmatizzata da Karl Popper come tesi della “fine della strada in fisica”. Sin dalla fine degli anni ’60, egli ha sviluppato quella riflessione critica nei confronti delle teorie fondamentali della fisica moderna, in particolar modo della teoria delle particelle (...)
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  • Pluralists about Pluralism? Versions of Explanatory Pluralism in Psychiatry.Jeroen Van Bouwel - 2014 - In Thomas Uebel (ed.), New Directions in the Philosophy of Science. Cham: Springer. pp. 105-119.
    In this contribution, I comment on Raffaella Campaner’s defense of explanatory pluralism in psychiatry (in this volume). In her paper, Campaner focuses primarily on explanatory pluralism in contrast to explanatory reductionism. Furthermore, she distinguishes between pluralists who consider pluralism to be a temporary state on the one hand and pluralists who consider it to be a persisting state on the other hand. I suggest that it would be helpful to distinguish more than those two versions of pluralism – different understandings (...)
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  • Can the world be shown to be indeterministic after all?Christian Wuthrich - 2011 - In Claus Beisbart & Stephan Hartmann (eds.), Probabilities in Physics. Oxford, GB: Oxford University Press. pp. 365--389.
    This essay considers and evaluates recent results and arguments from classical chaotic systems theory and non-relativistic quantum mechanics that pertain to the question of whether our world is deterministic or indeterministic. While the classical results are inconclusive, quantum mechanics is often assumed to establish indeterminism insofar as the measurement process involves an ineliminable stochastic element, even though the dynamics between two measurements is considered fully deterministic. While this latter claim concerning the Schrödinger evolution must be qualified, the former fully depends (...)
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  • Quantum Locality.Robert B. Griffiths - 2011 - Foundations of Physics 41 (4):705-733.
    It is argued that while quantum mechanics contains nonlocal or entangled states, the instantaneous or nonlocal influences sometimes thought to be present due to violations of Bell inequalities in fact arise from mistaken attempts to apply classical concepts and introduce probabilities in a manner inconsistent with the Hilbert space structure of standard quantum mechanics. Instead, Einstein locality is a valid quantum principle: objective properties of individual quantum systems do not change when something is done to another noninteracting system. There is (...)
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  • Misleading Signposts Along the de Broglie-Bohm Road to Quantum Mechanics.Michael K.-H. Kiessling - 2010 - Foundations of Physics 40 (4):418-429.
    Eighty years after de Broglie’s, and a little more than half a century after Bohm’s seminal papers, the de Broglie–Bohm theory (a.k.a. Bohmian mechanics), which is presumably the simplest theory which explains the orthodox quantum mechanics formalism, has reached an exemplary state of conceptual clarity and mathematical integrity. No other theory of quantum mechanics comes even close. Yet anyone curious enough to walk this road to quantum mechanics is soon being confused by many misleading signposts that have been put up, (...)
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  • Quantum Mechanics is About Quantum Information.Jeffrey Bub - 2005 - Foundations of Physics 35 (4):541-560.
    I argue that quantum mechanics is fundamentally a theory about the representation and manipulation of information, not a theory about the mechanics of nonclassical waves or particles. The notion of quantum information is to be understood as a new physical primitive—just as, following Einstein’s special theory of relativity, a field is no longer regarded as the physical manifestation of vibrations in a mechanical medium, but recognized as a new physical primitive in its own right.
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  • From Quantum Gravity to Classical Phenomena.Michael Esfeld & Antonio Vassallo - 2013 - In Tilman Sauer & Adrian Wüthrich (eds.), New Vistas on Old Problems. Max Planck Research Library for the History and Development of Knowledge.
    Quantum gravity is supposed to be the most fundamental theory, including a quantum theory of the metrical field (spacetime). However, it is not clear how a quantum theory of gravity could account for classical phenomena, including notably measurement outcomes. But all the evidence that we have for a physical theory is based on measurement outcomes. We consider this problem in the framework of canonical quantum gravity, pointing out a dilemma: all the available accounts that admit classical phenomena presuppose entities with (...)
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  • A dilemma for the emergence of spacetime in canonical quantum gravity.Vincent Lam & Michael Esfeld - 2013 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 44 (3):286-293.
    The procedures of canonical quantization of the gravitational field apparently lead to entities for which any interpretation in terms of spatio-temporal localization or spatio-temporal extension seems difficult. This fact is the main ground for the suggestion that can often be found in the physics literature on canonical quantum gravity according to which spacetime may not be fundamental in some sense. This paper aims to investigate this radical suggestion from an ontologically serious point of view in the cases of two standard (...)
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  • Why the quantum?Jeffrey Bub - 2004 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 35 (2):241-266.
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  • The Status of our Ordinary Three Dimensions in a Quantum Universe1.Alyssa Ney - 2010 - Noûs 46 (3):525-560.
    There are now several, realist versions of quantum mechanics on offer. On their most straightforward, ontological interpretation, these theories require the existence of an object, the wavefunction, which inhabits an extremely high-dimensional space known as configuration space. This raises the question of how the ordinary three-dimensional space of our acquaintance fits into the ontology of quantum mechanics. Recently, two strategies to address this question have emerged. First, Tim Maudlin, Valia Allori, and her collaborators argue that what I have just called (...)
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  • Quantum probabilities as degrees of belief.Jeffrey Bub - 2007 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 38 (2):232-254.
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  • Entropy - A Guide for the Perplexed.Roman Frigg & Charlotte Werndl - 2011 - In Claus Beisbart & Stephan Hartmann (eds.), Probabilities in Physics. Oxford, GB: Oxford University Press. pp. 115-142.
    Entropy is ubiquitous in physics, and it plays important roles in numerous other disciplines ranging from logic and statistics to biology and economics. However, a closer look reveals a complicated picture: entropy is defined differently in different contexts, and even within the same domain different notions of entropy are at work. Some of these are defined in terms of probabilities, others are not. The aim of this chapter is to arrive at an understanding of some of the most important notions (...)
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  • Three conceptions of explaining how possibly—and one reductive account.Johannes Persson - 2011 - In Henk W. de Regt (ed.), EPSA Philosophy of Science: Amsterdam 2009. Springer. pp. 275--286.
    Philosophers of science have often favoured reductive approaches to how-possibly explanation. This article identifies three alternative conceptions making how-possibly explanation an interesting phenomenon in its own right. The first variety approaches “how possibly X?” by showing that X is not epistemically impossible. This can sometimes be achieved by removing misunderstandings concerning the implications of one’s current belief system but involves characteristically a modification of this belief system so that acceptance of X does not result in contradiction. The second variety offers (...)
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  • Reconstructing reality: Environment-induced decoherence, the measurement problem, and the emergence of definiteness in quantum mechanics.Hanneke Janssen - unknown
    This work is a critique of the program of "environment-induced decoherence" as advocated by Zurek, Zeh and Joos, among others. In particular, the alleged relevance of decoherence for a solution of the "measurement problem" is subjected to a detailed philosophical analysis. In the first chapter, an attempt is made to unravel what exactly this "measurement problem" amounts to for the decoherence theorists. The second chapter reviews the standard decoherence literature. The third chapter starts with a brief discussion of the philosophical (...)
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  • Are all particles identical?Sheldon Goldstein - manuscript
    We consider the possibility that all particles in the world are fundamentally identical, i.e., belong to the same species. Different masses, charges, spins, flavors, or colors then merely correspond to different quantum states of the same particle, just as spin-up and spin-down do. The implications of this viewpoint can be best appreciated within Bohmian mechanics, a precise formulation of quantum mechanics with particle trajectories. The implementation of this viewpoint in such a theory leads to trajectories different from those of the (...)
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  • Dispositions, relational properties and the quantum world.Mauro Dorato - 2017 - In Maximilien Kistler (ed.), Dispositions and Causal Powers, Routledge, 2017,. London: Routledge. pp. pp.249-270..
    In this paper I examine the role of dispositional properties in the most frequently discussed interpretations of non-relativistic quantum mechanics. After offering some motivation for this project, I briefly characterize the distinction between non-dispositional and dispositional properties in the context of quantum mechanics by suggesting a necessary condition for dispositionality – namely contextuality – and, consequently, a sufficient condition for non-dispositionality, namely non-contextuality. Having made sure that the distinction is conceptually sound, I then analyze the plausibility of the widespread, monistic (...)
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  • The message of the quantum?Martin Daumer, Detlef Duerr, Sheldon Goldstein, Tim Maudlin, Roderich Tumulka & Nino Zanghi - unknown
    We criticize speculations to the effect that quantum mechanics is fundamentally about information. We do this by pointing out how unfounded such speculations in fact are. Our analysis focuses on the dubious claims of this kind recently made by Anton Zeilinger.
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  • Two dogmas about quantum mechanics.Jeffrey Bub & Itamar Pitowsky - 2010 - In Simon Saunders, Jonathan Barrett, Adrian Kent & David Wallace (eds.), Many Worlds?: Everett, Quantum Theory, & Reality. Oxford, GB: Oxford University Press UK.
    We argue that the intractable part of the measurement problem -- the 'big' measurement problem -- is a pseudo-problem that depends for its legitimacy on the acceptance of two dogmas. The first dogma is John Bell's assertion that measurement should never be introduced as a primitive process in a fundamental mechanical theory like classical or quantum mechanics, but should always be open to a complete analysis, in principle, of how the individual outcomes come about dynamically. The second dogma is the (...)
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  • Determinate values for quantum observables.Roderich Tumulka - 2007 - British Journal for the Philosophy of Science 58 (2):355 - 360.
    This is a comment on J. A. Barrett's article 'The Preferred-Basis Problem and the Quantum Mechanics of Everything' ([2005]), which concerns theories postulating that certain quantum observables have determinate values, corresponding to additional (often called 'hidden') variables. I point out that it is far from clear, for most observables, what such a postulate is supposed to mean, unless the postulated additional variable is related to a clear ontology in space-time, such as particle world lines, string world sheets, or fields.
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  • O Argumento Direto pelo Incompatibilismo.Gabriel Maruchi - unknown
    Nesta monografia, discutirei o Argumento Direto pelo incompatibilismo. Incompatibilismo ´e a tese de que responsabilidade moral ´e incompat´ıvel com o determinismo nomol´ogico. De ma- neira simplificada, o argumento ´e o seguinte: N´os n˜ao somos respons´aveis pelo passado e pelas leis da natureza. Se o determinismo for verdadeiro, nossas ac¸ ˜oes s˜ao consequˆencia do passado e das leis da natureza. Portanto, se o determinismo for verdadeiro, n˜ao somos respons´aveis por nossas ac¸ ˜oes. Defendo ao longo da monografia que o Argumento Direto (...)
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  • Still or Sparkling? Past, Present and Future in Bohm’s Implicate Order Approach.Paavo Pylkkänen - 2023 - In Eero Kaila, Henri Pettersson & Jani Sinokki (eds.), Past. Future. Philosophy. Proceedings of the Philosophical Society of Finland Colloquium 2022. Acta Philosophica Fennica Vol. 99, 2023. The Philosophical Society of Finland. pp. 107-125.
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  • The Identification of Mean Quantum Potential with Fisher Information Leads to a Strong Uncertainty Relation.Yakov Bloch & Eliahu Cohen - 2022 - Foundations of Physics 52 (6):1-11.
    The Cramér–Rao bound, satisfied by classical Fisher information, a key quantity in information theory, has been shown in different contexts to give rise to the Heisenberg uncertainty principle of quantum mechanics. In this paper, we show that the identification of the mean quantum potential, an important notion in Bohmian mechanics, with the Fisher information, leads, through the Cramér–Rao bound, to an uncertainty principle which is stronger, in general, than both Heisenberg and Robertson–Schrödinger uncertainty relations, allowing to experimentally test the validity (...)
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  • Tabletop Experiments for Quantum Gravity Are Also Tests of the Interpretation of Quantum Mechanics.Emily Adlam - 2022 - Foundations of Physics 52 (5):1-43.
    Recently there has been a great deal of interest in tabletop experiments intended to exhibit the quantum nature of gravity by demonstrating that it can induce entanglement. In order to evaluate these experiments, we must determine if there is any interesting class of possibilities that will be convincingly ruled out if it turns out that gravity can indeed induce entanglement. In particular, since one argument for the significance of these experiments rests on the claim that they demonstrate the existence of (...)
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  • On the Galilean Invariance of the Pilot-Wave Theory.Valia Allori - 2022 - Foundations of Physics 52 (5):1-21.
    Many agree that the pilot-wave theory is to be understood as a first-order theory, in which the law constrains the velocity of the particles. However, while Dürr, Goldstein and Zanghì maintain that the pilot-wave theory is Galilei invariant, Valentini argues that such a symmetry is mathematical but it has no physical significance. Moreover, some wavefunction realists insist that the pilot-wave theory is not Galilei invariant in any sense. It has been maintained by some that this disagreement originates in the disagreement (...)
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  • Levels of Description and Levels of Reality: A General Framework.Christian List - forthcoming - In Alastair Wilson & Katie Robertson (eds.), Levels of Explanation. Oxford University Press.
    This expository paper presents a general framework for representing levels and inter-level relations. The framework is intended to capture both epistemic and ontological notions of levels and to clarify the sense in which levels of explanation might or might not be related to a levelled ontology. The framework also allows us to study and compare different kinds of inter-level relations, especially supervenience and reduction but also grounding and mereological constitution. This, in turn, enables us to explore questions such as whether (...)
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  • What is It Like to be a Relativistic GRW Theory? Or: Quantum Mechanics and Relativity, Still in Conflict After All These Years.Valia Allori - 2022 - Foundations of Physics 52 (4):1-28.
    The violation of Bell’s inequality has shown that quantum theory and relativity are in tension: reality is nonlocal. Nonetheless, many have argued that GRW-type theories are to be preferred to pilot-wave theories as they are more compatible with relativity: while relativistic pilot-wave theories require a preferred slicing of space-time, foliation-free relativistic GRW-type theories have been proposed. In this paper I discuss various meanings of ‘relativistic invariance,’ and I show how GRW-type theories, while being more relativistic in one sense, are less (...)
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  • Bohmian Mechanics is Not Deterministic.Klaas Landsman - 2022 - Foundations of Physics 52 (4):1-17.
    I argue that Bohmian mechanics cannot reasonably be claimed to be a deterministic theory. If one assumes the “quantum equilibrium distribution” provided by the wave function of the universe, Bohmian mechanics requires an external random oracle in order to describe the algorithmic randomness properties of typical outcome sequences of long runs of repeated identical experiments. This oracle lies beyond the scope of Bohmian mechanics, including the impossibility of explaining the randomness property in question from “random” initial conditions. Thus the advantages (...)
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