Results for 'many worlds quantum Everett multiverse'

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  1.  99
    Many Worlds?: Everett, Quantum Theory, & Reality.Simon Saunders, Jonathan Barrett, Adrian Kent & David Wallace (eds.) - 2010 - Oxford University Press UK.
    What would it mean to apply quantum theory, without restriction and without involving any notion of measurement and state reduction, to the whole universe? What would realism about the quantum state then imply? This book brings together an illustrious team of philosophers and physicists to debate these questions. The contributors broadly agree on the need, or aspiration, for a realist theory that unites micro- and macro-worlds. But they disagree on what this implies. Some argue that if unitary (...)
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  2.  59
    On Probabilities in the Many Worlds Interpretation of Quantum Mechanics.Florian Boge - 2016 - KUPS - Kölner UniversitätsPublikationsServer.
    Quantum Mechanics notoriously faces a measurement problem, the problem that the unitary time evolution, encoded in its dynamical equations, together with the kinematical structure of the theory generally implies the non-existence of definite measurement outcomes. There have been multiple suggestions to solve this problem, among them the so called many worlds interpretation that originated with the work of Hugh Everett III. According to it, the quantum state and time evolution fully and accurately describe nature as (...)
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  3. Many Worlds, the Born Rule, and Self-Locating Uncertainty.Sean M. Carroll & Charles T. Sebens - 2014 - In Daniele C. Struppa & Jeffrey M. Tollaksen (eds.), Quantum Theory: A Two-Time Success Story. Springer. pp. 157-169.
    We provide a derivation of the Born Rule in the context of the Everett (Many-Worlds) approach to quantum mechanics. Our argument is based on the idea of self-locating uncertainty: in the period between the wave function branching via decoherence and an observer registering the outcome of the measurement, that observer can know the state of the universe precisely without knowing which branch they are on. We show that there is a uniquely rational way to apportion credence (...)
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  4.  4
    Evil and Many Worlds: A Free-Will Theodicy.William Hunt - 2021 - Lexington Books.
    Evil and Many Worlds is a free-will theodicy based upon Huw Everett III's 1957 many-worlds interpretation of quantum mechanics. The theodicy argues for a balance of good and evil across an emergent multiverse where free will—a greater good valued by both persons and God— flourishes.
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  5.  40
    Reviews Many Worlds? Everett, Quantum Theory and Reality. Simon Saunders, Jonathan Barrett, Adrian Kent and David Wallace. Oxford: Oxford University Press, Pp. Xvi + 618. ISBN: 9780199560561; £55 Hbk. [REVIEW]Jeremy Butterfield - 2011 - Philosophy 86 (3):451-463.
  6. Many Worlds and Schrodinger's First Quantum Theory.Valia Allori, Sheldon Goldstein, Roderich Tumulka & Nino Zanghì - 2011 - British Journal for the Philosophy of Science 62 (1):1-27.
    Schrödinger’s first proposal for the interpretation of quantum mechanics was based on a postulate relating the wave function on configuration space to charge density in physical space. Schrödinger apparently later thought that his proposal was empirically wrong. We argue here that this is not the case, at least for a very similar proposal with charge density replaced by mass density. We argue that when analyzed carefully, this theory is seen to be an empirically adequate many-worlds theory and (...)
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  7.  28
    The Many Facets of Everett’s Many Worlds: Simon Saunders, Jonathan Barrett, Adrian Kent, and David Wallace : Many Worlds? Everett, Quantum Theory, & Reality. Oxford: Oxford University Press, 2010, Xvi+618pp, £63.00 HB.Guido Bacciagaluppi - 2013 - Metascience 22 (3):575-582.
  8.  19
    Review of 'Many Worlds? Everett, Quantum Theory and Reality'. [REVIEW]J. Butterfield - unknown
    This is a Critical Notice for the general philosophical journal, Philosophy, of the anthology 'Many Worlds? Everett, Quantum Theory and Reality', edited by Simon Saunders, Jonathan Barrett, Adrian Kent and David Wallace.
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  9.  40
    How the Many Worlds Interpretation Brings Common Sense to Paradoxical Quantum Experiments.Kelvin J. McQueen & Lev Vaidman - 2020 - In Rik Peels, Jeroen de Ridder & René van Woudenberg (eds.), Scientific Challenges to Common Sense Philosophy. New York: Routledge. pp. 40-60.
    The many worlds interpretation of quantum mechanics (MWI) states that the world we live in is just one among many parallel worlds. It is widely believed that because of this commitment to parallel worlds, the MWI violates common sense. Some go so far as to reject the MWI on this basis. This is despite its myriad of advantages to physics (e.g. consistency with relativity theory, mathematical simplicity, realism, determinism, etc.). Here, we make the case (...)
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  10. The Emergent Multiverse: Quantum Theory According to the Everett Interpretation.David Wallace - 2012 - Oxford University Press.
    David Wallace argues that we should take quantum theory seriously as an account of what the world is like--which means accepting the idea that the universe is constantly branching into new universes. He presents an accessible but rigorous account of the 'Everett interpretation', the best way to make coherent sense of quantum physics.
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  11.  73
    The Everett Interpretation of Quantum Mechanics: Many Worlds or None?Howard Stein - 1984 - Noûs 18 (4):635-652.
  12.  69
    The Many-Worlds Interpretation of Quantum Mechanics: Psychological Versus Physical Bases for the Multiplicity of "Worlds".Howard Barnum - unknown
    This unpublished 1990 preprint argues that a crucial distinction in discussions of the many-worlds interpretation of quantum mechanics (MWI) is that between versions of the interpretation positing a physical multiplicity of worlds, and those in which the multiplicity is merely psychological, and due to the splitting of consciousness upon interaction with amplified quantum superpositions. It is argued that Everett's original version of the MWI belongs to the latter class, and that most of the criticisms (...)
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  13. Everett's “Many-Worlds” Proposal.Brett Maynard Bevers - 2011 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 42 (1):3-12.
    Hugh Everett III proposed that a quantum measurement can be treated as an interaction that correlates microscopic and macroscopic systems—particularly when the experimenter herself is included among those macroscopic systems. It has been difficult, however, to determine precisely what this proposal amounts to. Almost without exception, commentators have held that there are ambiguities in Everett’s theory of measurement that result from significant—even embarrassing—omissions. In the present paper, we resist the conclusion that Everett’s proposal is incomplete, and (...)
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  14.  92
    An Introduction to Many Worlds in Quantum Computation.Clare Hewitt-Horsman - 2009 - Foundations of Physics 39 (8):869-902.
    The interpretation of quantum mechanics is an area of increasing interest to many working physicists. In particular, interest has come from those involved in quantum computing and information theory, as there has always been a strong foundational element in this field. This paper introduces one interpretation of quantum mechanics, a modern ‘many-worlds’ theory, from the perspective of quantum computation. Reasons for seeking to interpret quantum mechanics are discussed, then the specific ‘neo-Everettian’ theory (...)
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  15.  97
    Simon Saunders , Jonathan Barrett , Adrian Kent , and David Wallace , Many Worlds? Everett, Quantum Theory, and Reality . Oxford: Oxford University Press (2010), 618 Pp., $99.00. [REVIEW]Peter Lewis - 2012 - Philosophy of Science 79 (1):177-181.
  16. Review of Simon Saunders, Jonathan Barrett, Adrian Kent, David Wallace (Eds.), Many Worlds? Everett, Quantum Theory, and Reality[REVIEW]Amit Hagar - 2010 - Notre Dame Philosophical Reviews 2010 (10).
    Hugh Everett III died of a heart attack in July 1982 at the age of 51. Almost 26 years later, a New York Times obituary for his PhD advisor, John Wheeler, mentioned him and Richard Feynman as Wheeler’s most prominent students. Everett’s PhD thesis on the relative state formulation of quantum mechanics, later known as the “Many Worlds Interpretation”, was published (in its edited form) in 1957, and later (in its original, unedited form) in 1973, (...)
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  17. The Theistic Multiverse: Problems and Prospects.Klaas J. Kraay - 2012 - In Yujin Nagasawa (ed.), Scientific Approaches to the Philosophy of Religion. Palgrave-Macmillan. pp. 143--162.
    In recent decades, there has been astonishing growth in scientific theorizing about multiverses. Once considered outré or absurd, multiple universe theories appear to be gaining considerable scientific respectability. There are, of course, many such theories, including (i) Everett’s (1957) many worlds interpretation of quantum mechanics, defended by Deutsch (1997) and others; (ii) Linde’s (1986) eternal inflation view, which suggests that universes form like bubbles in a chaotically inflating sea; (iii) Smolin’s (1997) fecund universe theory, which (...)
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  18.  10
    Everett's “Many-Worlds” Proposal.Brett Maynard Bevers - 2011 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 42 (1):3-12.
    Hugh Everett III proposed that a quantum measurement can be treated as an interaction that correlates microscopic and macroscopic systems—particularly when the experimenter herself is included among those macroscopic systems. It has been difficult, however, to determine precisely what this proposal amounts to. Almost without exception, commentators have held that there are ambiguities in Everett’s theory of measurement that result from significant—even embarrassing—omissions. In the present paper, we resist the conclusion that Everett’s proposal is incomplete, and (...)
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  19. The Human Story Behind Everettian Quantum Mechanics: Peter Byrne: The Many Worlds of Hugh Everett III: Multiple Universes, Mutual Assured Destruction, and the Meltdown of a Nuclear Family. Oxford: Oxford University Press, 456pp, £25.00 HB. [REVIEW]Alastair Wilson - 2012 - Metascience 21 (1):143-146.
    The human story behind Everettian quantum mechanics Content Type Journal Article Pages 1-4 DOI 10.1007/s11016-010-9510-4 Authors Alastair Wilson, University College, Oxford, OX1 4BH UK Journal Metascience Online ISSN 1467-9981 Print ISSN 0815-0796.
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  20. Self-Locating Uncertainty and the Origin of Probability in Everettian Quantum Mechanics.Charles T. Sebens & Sean M. Carroll - 2016 - British Journal for the Philosophy of Science (1):axw004.
    A longstanding issue in attempts to understand the Everett (Many-Worlds) approach to quantum mechanics is the origin of the Born rule: why is the probability given by the square of the amplitude? Following Vaidman, we note that observers are in a position of self-locating uncertainty during the period between the branches of the wave function splitting via decoherence and the observer registering the outcome of the measurement. In this period it is tempting to regard each branch (...)
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  21.  47
    Many Worlds: An Introduction.Simon Saunders - unknown
    This is a self-contained introduction to the Everett interpretation of quantum mechanics. It is the introductory chapter of Many Worlds? Everett, quantum theory, and reality, S. Saunders, J. Barrett, A. Kent, and D. Wallace, Oxford University Press.
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  22. Many Worlds: Decoherent or Incoherent?Karim P. Y. Thébault & Richard Dawid - 2015 - Synthese 192 (5):1559-1580.
    We claim that, as it stands, the Deutsch–Wallace–Everett approach to quantum theory is conceptually incoherent. This charge is based upon the approach’s reliance upon decoherence arguments that conflict with its own fundamental precepts regarding probabilistic reasoning in two respects. This conceptual conflict obtains even if the decoherence arguments deployed are aimed merely towards the establishment of certain ‘emergent’ or ‘robust’ structures within the wave function: To be relevant to physical science notions such as robustness must be empirically grounded, (...)
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  23.  32
    Worlds Without End: The Many Lives of the Multiverse.Mary-Jane Rubenstein - 2015 - Cambridge University Press.
    "Multiverse" cosmologies imagine our universe as just one of a vast number of others. While this idea has captivated philosophy, religion, and literature for millennia, it is now being considered as a scientific hypothesis--with different models emerging from cosmology, quantum mechanics, and string theory. Beginning with ancient Atomist and Stoic philosophies, Mary-Jane Rubenstein links contemporary models of the multiverse to their forerunners and explores the reasons for their recent appearance. One concerns the so-called fine-tuning of the universe: (...)
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  24.  98
    The Metaphysics of D-CTCs: On the Underlying Assumptions of Deutsch׳s Quantum Solution to the Paradoxes of Time Travel.Lucas Dunlap - 2016 - Studies in the History and Philosophy of Modern Physics 56:39-47.
    I argue that Deutsch’s model for the behavior of systems traveling around closed timelike curves relies implicitly on a substantive metaphysical assumption. Deutsch is employing a version of quantum theory with a significantly supplemented ontology of parallel existent worlds, which differ in kind from the many worlds of the Everett interpretation. Standard Everett does not support the existence of multiple identical copies of the world, which the D-CTC model requires. This has been obscured because (...)
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  25.  82
    Many-Measurements or Many-Worlds? A Dialogue.Diederik Aerts & Massimiliano Sassoli de Bianchi - 2015 - Foundations of Science 20 (4):399-427.
    Many advocates of the Everettian interpretation consider that theirs is the only approach to take quantum mechanics really seriously, and that this approach allows to deduce a fantastic scenario for our reality, one that consists of an infinite number of parallel worlds that branch out continuously. In this article, written in dialogue form, we suggest that quantum mechanics can be taken even more seriously, if the many-worlds view is replaced by a many-measurements view. (...)
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  26. Confirmation in a Branching World: The Everett Interpretation and Sleeping Beauty.Darren Bradley - 2011 - British Journal for the Philosophy of Science 62 (2):323-342.
    Sometimes we learn what the world is like, and sometimes we learn where in the world we are. Are there any interesting differences between the two kinds of cases? The main aim of this article is to argue that learning where we are in the world brings into view the same kind of observation selection effects that operate when sampling from a population. I will first explain what observation selection effects are ( Section 1 ) and how they are relevant (...)
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  27. Possibility, Actuality, and the Growth of Imagination: The Many-Worlds Approach to Quantum Physics.Alberto Cordero - 2008 - Ontology Studies: Cuadernos de Ontología:93-102.
    Las interpretaciónes de la física cuántica de Everett-DeWitt hablan de una multiplicidad de mundos físicamente coexistenrtes. Éstas imaginativas reacciones a los problemas conceptuales de la mecánica cuántica estándar forman una família de propuestas de “universos múltiples” que, sin pleno éxito, han sido tachadas de incoherentes.Everett-DeWitt interpretations of quantum physics speak of a multiplicity of physically coexisting worlds. These imaginative reactions to the conceptual problems of standard quantum mechanics form a family of physicalist “many-worlds (...)
     
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  28.  24
    Physics Versus Semantics: A Puzzling Case of the Missing Quantum Theory. [REVIEW]Milan M. Cirkovi’C. - 2005 - Foundations of Physics 35 (5):817-838.
    A case for the project of excising of confusion and obfuscation in the contemporary quantum theory initiated and promoted by David Deutsch has been made. It has been argued that at least some theoretical entities which are conventionally labelled as “interpretations” of quantum mechanics are in fact full-blooded physical theories in their own right, and as such are falsifiable, at least in principle. The most pertinent case is the one of the so-called “Many-Worlds Interpretation” (MWI) of (...)
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  29. Everett’s Pure Wave Mechanics and the Notion of Worlds.Jeffrey A. Barrett - 2011 - European Journal for Philosophy of Science 1 (2):277-302.
    Everett (1957a, b, 1973) relative-state formulation of quantum mechanics has often been taken to involve a metaphysical commitment to the existence of many splitting worlds each containing physical copies of observers and the objects they observe. While there was earlier talk of splitting worlds in connection with Everett, this is largely due to DeWitt’s (Phys Today 23:30–35, 1970) popular presentation of the theory. While the thought of splitting worlds or parallel universes has captured (...)
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  30. Drift–Diffusion in Mangled Worlds Quantum Mechanics.Robin Hanson - unknown
    In Everett’s many-worlds interpretation, where quantum measurements are seen as decoherence events, inexact decoherence may let large worlds mangle the memories of observers in small worlds, creating a cutoff in observable world measure. I solve a growth–drift–diffusion–absorption model of such a mangled worlds scenario, and show that it reproduces the Born probability rule closely, though not exactly. Thus, inexact decoherence may allow the Born rule to be derived in a many-worlds approach (...)
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  31. Many Worlds in Context.Max Tegmark - 2010 - In Simon Saunders, Jonathan Barrett, Adrian Kent & David Wallace (eds.), Many Worlds?: Everett, Quantum Theory & Reality. Oxford University Press.
     
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  32. Many Worlds in Context.Max Tegmark - 2010 - In Simon Saunders, Jonathan Barrett, Adrian Kent & David Wallace (eds.), Many Worlds?: Everett, Quantum Theory, & Reality. Oxford University Press.
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  33. Everett's Relative-State Formulation of Quantum Mechanics.Jeffrey Barrett - 2008 - Stanford Encyclopedia of Philosophy.
    Everett's relative-state formulation of quantum mechanics is an attempt to solve the measurement problem by dropping the collapse dynamics from the standard von Neumann-Dirac theory of quantum mechanics. The main problem with Everett's theory is that it is not at all clear how it is supposed to work. In particular, while it is clear that he wanted to explain why we get determinate measurement results in the context of his theory, it is unclear how he intended (...)
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  34. "Weeping Angels and Many Worlds".Peter A. Sutton - 2015 - In Courtland Lewis Paula Smithka (ed.), More Doctor Who and Philosophy. Open Court Press. pp. 69-76.
    The Doctor, like many time-travelers, often finds himself in the midst of a causal loop. Events in the future cause events in the past, which in turn cause the future events. There is a worry that a person in this situation could never have true libertarian freedom: facts about the past entail their future actions, so they couldn't do otherwise than they in fact do. -/- In this paper, I argue that there are logically coherent (though perhaps unlikely!) ways (...)
     
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  35. Everettian Mechanics with Hyperfinitely Many Worlds.Jeffrey Barrett & Isaac Goldbring - forthcoming - Erkenntnis:1-20.
    The present paper shows how one might model Everettian quantum mechanics using hyperfinitely many worlds. A hyperfinite model allows one to consider idealized measurements of observables with continuous-valued spectra where different outcomes are associated with possibly infinitesimal probabilities. One can also prove hyperfinite formulations of Everett’s limiting relative-frequency and randomness properties, theorems he considered central to his formulation of quantum mechanics. Finally, this model provides an intuitive framework in which to consider no-collapse formulations of (...) mechanics more generally. (shrink)
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  36.  57
    Time Symmetry and the Many-Worlds Interpretation.Lev Vaidman - 2009 - In Simon Saunders, Jonathan Barrett, Adrian Kent & David Wallace (eds.), Many Worlds?: Everett, Quantum Theory & Reality. Oxford University Press.
    An attempt to solve the collapse problem in the framework of a time-symmetric quantum formalism is reviewed. Although the proposal does not look very attractive, its concept - a world defined by two quantum states, one evolving forwards and one evolving backwards in time - is found to be useful in modifying the many-worlds picture of Everett’s theory.
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  37. Worlds in the Everett Interpretation.David Wallace - 2002 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 33 (4):637-661.
    This is a discussion of how we can understand the world-view given to us by the Everett interpretation of quantum mechanics, and in particular the role played by the concept of 'world'. The view presented is that we are entitled to use 'many-worlds' terminology even if the theory does not specify the worlds in the formalism; this is defended by means of an extensive analogy with the concept of an 'instant' or moment of time in (...)
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  38.  73
    David Wallace the Emergent Multiverse: Quantum Theory According to the Everett Interpretation.Lev Vaidman - 2015 - British Journal for the Philosophy of Science 66 (2):465-468.
    We have, then, a theory which is objectively causal and continuous, while at the same time subjectively probabilistic and discontinuous. It can lay claim to a certain completeness, since it applies to all systems, of whatever size, and is still capable of explaining the appearance of the macroscopic world. The price, however, is the abandonment of the concept of the uniqueness of the observer, with its somewhat disconcerting philosophical implications.
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  39. Multiworld interpretation of quantum mechanics and N. Goodman's many worlds.S. V. Vlasova - 2012 - Liberal Arts in Russia 1 (1):23--29.
    Different conceptions on reality in physics and philosophy in the 20th century have been analyzed in the article. These approaches caused the necessity to study the multitude of the worlds. The author proved that multiworld interpretation of quantum mechanics and multitude of the worlds in the Goodman'€™s conception are opposite tendencies. Everett and his followers consider the quantum world as some universal reality whereas Goodman and his supporters do not believe in universal reality.
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  40. When Worlds Collide: Quantum Probability From Observer Selection? [REVIEW]Robin Hanson - 2003 - Foundations of Physics 33 (7):1129-1150.
    In Everett's many worlds interpretation, quantum measurements are considered to be decoherence events. If so, then inexact decoherence may allow large worlds to mangle the memory of observers in small worlds, creating a cutoff in observable world size. Smaller world are mangled and so not observed. If this cutoff is much closer to the median measure size than to the median world size, the distribution of outcomes seen in unmangled worlds follows the Born (...)
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  41.  8
    Something Deeply Hidden: Quantum Worlds and the Emergence of Spacetime.Sean M. Carroll - 2019 - New York, USA: Dutton.
    A non-technical introduction to quantum mechanics, the Everett interpretation, and the emergence of spacetime.
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  42. Privileged-Perspective Realism in the Quantum Multiverse.Nora Berenstain - 2020 - In David Glick, George Darby & Anna Marmodoro (eds.), The Foundation of Reality: Fundamentality, Space, and Time. Oxford University Press.
    Privileged-perspective realism (PPR) is a version of metaphysical realism that takes certain irreducibly perspectival facts to be partly constitutive of reality. PPR asserts that there is a single metaphysically privileged standpoint from which these perspectival facts obtain. This chapter discusses several views that fall under the category of privileged-perspective realism. These include presentism, which is PPR about tensed facts, and non-multiverse interpretations of quantum mechanics, which the chapter argues, constitute PPR about world-indexed facts. Using the framework of the (...)
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  43. Time Symmetry and the Many-Worlds Interpretation.Lev Vaidman - 2010 - In Simon Saunders, Jonathan Barrett, Adrian Kent & David Wallace (eds.), Many Worlds?: Everett, Quantum Theory, & Reality. Oxford University Press.
     
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  44. Pilot-Wave Theory: Many Worlds in Denial?Antony Valentini - 2010 - In Simon Saunders, Jonathan Barrett, Adrian Kent & David Wallace (eds.), Many Worlds?: Everett, Quantum Theory & Reality. Oxford University Press.
     
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  45. Pilot-Wave Theory: Many Worlds in Denial?Antony Valentini - 2010 - In Simon Saunders, Jonathan Barrett, Adrian Kent & David Wallace (eds.), Many Worlds?: Everett, Quantum Theory, & Reality. Oxford University Press.
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  46. The Measure of Existence of a Quantum World and the Sleeping Beauty Problem.Berry Groisman, Na'ama Hallakoun & Lev Vaidman - 2013 - Analysis 73 (4):695-706.
    Next SectionAn attempt to resolve the controversy regarding the solution of the Sleeping Beauty Problem in the framework of the Many-Worlds Interpretation led to a new controversy regarding the Quantum Sleeping Beauty Problem. We apply the concept of a measure of existence of a world and reach the solution known as ‘thirder’ solution which differs from Peter Lewis’s ‘halfer’ assertion. We argue that this method provides a simple and powerful tool for analysing rational decision theory problems.
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  47.  42
    Quantum Worlds.Jeffrey A. Barrett - 2016 - Principia: An International Journal of Epistemology 20 (1):45-60.
    Because of the conceptual difficulties it faces, quantum mechanics provides a salient example of how alternative metaphysical commitments may clarify our understanding of a physical theory and the explanations it provides. Here we will consider how postulating alternative quantum worlds in the context of Hugh Everett III’s pure wave mechanics may serve to explain determinate measurement records and the standard quantum statistics. We will focus on the properties of such worlds, then briefly consider other (...)
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  48.  91
    The Many Computations Interpretation (MCI) of Quantum Mechanics.Jacques Mallah - manuscript
    Computationalism provides a framework for understanding how a mathematically describable physical world could give rise to conscious observations without the need for dualism. A criterion is proposed for the implementation of computations by physical systems, which has been a problem for computationalism. Together with an independence criterion for implementations this would allow, in principle, prediction of probabilities for various observations based on counting implementations. Applied to quantum mechanics, this results in a Many Computations Interpretation (MCI), which is an (...)
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  49. Many Worlds: Quantum Theory and Reality?Iñaki San Pedro - 2012 - Analysis 72 (2):386-395.
  50. Many-Worlds Interpretation of Quantum Mechanics.Lev Vaidman - 2008 - Stanford Encyclopedia of Philosophy.
    The Many-Worlds Interpretation (MWI) is an approach to quantum mechanics according to which, in addition to the world we are aware of directly, there are many other similar worlds which exist in parallel at the same space and time. The existence of the other worlds makes it possible to remove randomness and action at a distance from quantum theory and thus from all physics.
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