Results for 'Quantum theory'

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  1.  16
    A New Interpretation of Quantum Theory, Based on a Bundle-Theoretic View of Objective Idealism.Martin Korth - manuscript
    After about a century since the first attempts by Bohr, the interpretation of quantum theory is still a field with many open questions.1 In this article a new interpretation of quantum theory is suggested, motivated by philosophical considerations. Based on the findings that the ’weirdness’ of quantum theory can be understood to derive from a vanishing distinguishability of indiscernible particles, and the observation that a similar vanishing distinguishability is found for bundle theories in philosophical (...)
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  2. Quantum Theory: Reconsideration of Foundations-3: Växjö, Sweden, 6-11 June 2005.Guillaume Adenier, A. I͡U Khrennikov & Theo M. Nieuwenhuizen (eds.) - 2006 - American Institute of Physics.
    This Växjö conference was devoted to the reconsideration of quantum foundations. Due to increasing research in quantum information theory, especially on quantum computing and cryptography, many questions regarding the foundations of quantum mechanics, which have long been considered to be exclusively of philosophical interest, nowadays play an important role in theoretical and experimental quantum physics.
     
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  3.  1
    Quantum Theory, Reconsideration of Foundations 4: Växjö (Sweden), 11-16 June, 2007.Guillaume Adenier (ed.) - 2007 - American Institute of Physics.
    This conference was devoted to the 80 years of the Copenhagen Interpretation, and to the question of the relevance of the Copenhagen interpretation for the present understanding of quantum mechanics. It is in this framework that fundamental questions raised by quantum mechanics, especially in information theory, were discussed throughout the conference. As has become customary in our series of conference in Växjö, we were glad to welcome a fruitful assembly of theoretical physicists, experimentalists, mathematicians and even philosophers (...)
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  4.  6
    Quantum Theory and Gravitation.A. R. Marlow (ed.) - 1980 - Academic Press.
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  5.  8
    Introducing Quantum Theory.J. P. McEvoy - 1996 - Totem Books.
    Quantum theory is one of science's most thrilling, challenging and even mysterious areas. Scientists such as Planck, Einstein, Bohr, Heisenberg and Schrödinger uncovered bizarre paradoxes in the early 20th century that seemed to destroy the fundamental assumptions of 'classical physics' - the basic laws we are taught in school. Notoriously difficult, quantum theory is nonetheless an amazing and inspiring intellectual adventure, explained here with patience, wit and clarity.
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  6. Quantum Theory Without Measurement or State Reduction Problems.Alan Macdonald - manuscript
    There is a consistent and simple interpretation of the quantum theory of isolated systems. The interpretation suffers no measurement problem and provides a quantum explanation of state reduction, which is usually postulated. Quantum entanglement plays an essential role in the construction of the interpretation.
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  7.  50
    Quantum Theory at the Crossroads: Reconsidering the 1927 Solvay Conference.Guido Bacciagaluppi - 2007 - Cambridge University Press.
    The 1927 Solvay conference was perhaps the most important meeting in the history of quantum theory. Contrary to popular belief, the interpretation of quantum theory was not settled at this conference, and no consensus was reached. Instead, a range of sharply conflicting views were presented and extensively discussed, including de Broglie's pilot-wave theory, Born and Heisenberg's quantum mechanics, and Schrödinger's wave mechanics. Today, there is no longer an established or dominant interpretation of quantum (...)
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  8.  90
    Quantum Theory and the Flight From Realism: Philosophical Responses to Quantum Mechanics.Christopher Norris - 2000 - Routledge.
    This book is a critical introduction to the long-standing debate concerning the conceptual foundations of quantum mechanics and the problems it has posed for physicists and philosophers from Einstein to the present. Quantum theory has been a major infulence on postmodernism, and presents significant problems for realists. Keeping his own realist position in check, Christopher Norris subjects a wide range of key opponents and supporters of realism to a high and equal level of scrutiny. With a characteristic (...)
  9.  2
    Quantum Theory, Reconsideration of Foundations 5: Växjö, Sweden, 14-18 June 2009.A. I͡U Khrennikov (ed.) - 2010 - American Institute of Physics.
    As previous Växjö conferences on quantum foundations, QTRF-5 was notable not only for the contributions of the papers presented there but also for its exciting debates. These debates offered a great diversity of opinions on foundations of quantum mechanics (QM) and its future developments: from those defined by the view of those who adhere to the orthodox Copenhagen interpretation (which rejected realism and causality), at one end of the spectrum, to those who subscribed to realist views of the (...)
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  10. Quantum Theory and the Schism in Physics: From the Postscript to the Logic of Scientific Discovery.Iii Bartley (ed.) - 1982 - Routledge.
    _Quantum Theory and the Schism in Physics_ is one of the three volumes of Karl Popper’s _Postscript to the Logic of scientific Discovery_. The_ Postscript_ is the culmination of Popper’s work in the philosophy of physics and a new famous attack on subjectivist approaches to philosophy of science. Quantum Theory and the Schism in Physics is the third volume of the _Postscript_. It may be read independently, but it also forms part of Popper’s interconnected argument in the (...)
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  11. Quantum Theory and the Schism in Physics: From the Postscript to the Logic of Scientific Discovery.Iii Bartley (ed.) - 1982 - Routledge.
    _Quantum Theory and the Schism in Physics_ is one of the three volumes of Karl Popper’s _Postscript to the Logic of scientific Discovery_. The_ Postscript_ is the culmination of Popper’s work in the philosophy of physics and a new famous attack on subjectivist approaches to philosophy of science. Quantum Theory and the Schism in Physics is the third volume of the _Postscript_. It may be read independently, but it also forms part of Popper’s interconnected argument in the (...)
     
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  12. Quantum Theory and the Schism in Physics: From the Postscript to the Logic of Scientific Discovery.Iii Bartley (ed.) - 1982 - Routledge.
    _Quantum Theory and the Schism in Physics_ is one of the three volumes of Karl Popper’s _Postscript to the Logic of scientific Discovery_. The_ Postscript_ is the culmination of Popper’s work in the philosophy of physics and a new famous attack on subjectivist approaches to philosophy of science. Quantum Theory and the Schism in Physics is the third volume of the _Postscript_. It may be read independently, but it also forms part of Popper’s interconnected argument in the (...)
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  13.  88
    Quantum Theory and the Schism in Physics: From the Postscript to The Logic of Scientific Discovery.Karl Raimund Popper - 1982 - Routledge.
    The basic theme of Popper's philosophy--that something can come from nothing--is related to the present situation in physical theory. Popper carries his investigation right to the center of current debate in quantum physics. He proposes an interpretation of physics--and indeed an entire cosmology--which is realist, conjectural, deductivist and objectivist, anti-positivist, and anti-instrumentalist. He stresses understanding, reminding us that our ignorance grows faster than our conjectural knowledge.
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  14.  24
    Quantum Theory and the Need for Consciousness.Euan J. Squires - 1994 - Journal of Consciousness Studies 1 (2):201-4.
    It is argued that the main reason why quantum theory is relevant to consciousness is that the theory cannot be completely defined without introducing some features of consciousness.
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  15. Quantum Theory and Consciousness.B. Goertzel - 1992 - Journal of Mind and Behavior 13 (1):29-36.
    This article seeks to clarify the relation between consciousness and quantum physics. It is argued that, in order to be consistent with quantum theory, one must never assert that conscious action has caused a given event to occur. Rather, consciousness must be identified with "measurement" or, more concretely, with an increase in the entropy of the probability distribution of possible events. It is suggested that the feeling of self-awareness may be associated with the exchange of entropy between (...)
     
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  16.  2
    Quantum Theory and the Structures of Time and Space: Papers Presented at a Conference Held in Feldafing, July 1974.L. Castell, M. Drieschner & Carl Friedrich Weizsäcker (eds.) - 1975 - C. Hanser.
  17.  8
    Quantum Theory Methods as a Possible Alternative for the Double-Blind Gold Standard of Evidence-Based Medicine: Outlining a New Research Program.Diederik Aerts, Lester Beltran, Suzette Geriente, Massimiliano Sassoli de Bianchi, Sandro Sozzo, Rembrandt Van Sprundel & Tomas Veloz - 2019 - Foundations of Science 24 (2):217-225.
    We motivate the possibility of using notions and methods derived from quantum physics, and more specifically from the research field known as ‘quantum cognition’, to optimally model different situations in the field of medicine, its decision-making processes and ensuing practices, particularly in relation to chronic and rare diseases. This also as a way to devise alternative approaches to the generally adopted double-blind gold standard.
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  18. Interpreting Quantum Theories: The Art of the Possible.Laura Ruetsche - 2011 - Oxford University Press UK.
    Philosophers of quantum mechanics have generally addressed exceedingly simple systems. Laura Ruetsche offers a much-needed study of the interpretation of more complicated systems, and an underexplored family of physical theories, such as quantum field theory and quantum statistical mechanics, showing why they repay philosophical attention. She guides those familiar with the philosophy of ordinary QM into the philosophy of 'QM infinity', by presenting accessible introductions to relevant technical notions and the foundational questions they frame--and then develops (...)
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  19.  59
    Quantum Theory and Determinism.Lev Vaidman - unknown
    Historically, appearance of the quantum theory led to a prevailing view that Nature is indeterministic. The arguments for the indeterminism and proposals for indeterministic and deterministic approaches are reviewed. These include collapse theories, Bohmian Mechanics and the many-worlds interpretation. It is argued that ontic interpretations of the quantum wave function provide simpler and clearer physical explanation and that the many-worlds interpretation is the most attractive since it provides a deterministic and local theory for our physical Universe (...)
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  20. Quantum Theory and the Schism in Physics: From the Postscript to the Logic of Scientific Discovery.Karl Popper - 1982 - Routledge.
    Quantum Theory and the Schism in Physics is one of the three volumes of Karl Popper’s Postscript to the Logic of scientific Discovery . The Postscript is the culmination of Popper’s work in the philosophy of physics and a new famous attack on subjectivist approaches to philosophy of science. Quantum Theory and the Schism in Physics is the third volume of the Postscript . It may be read independently, but it also forms part of Popper’s interconnected (...)
     
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  21.  78
    On Quantum Theories of the Mind.A. C. Scott - 2003 - Journal of Consciousness Studies 3 (5-6):5-6.
    In response to recent suggestions that the phenomena of consciousness may be related to those described by quantum theory, it is argued that distinctive features of brain activity are more typical of nonlinear classical dynamics than of quantum dynamics, which is a linear theory. Thus natural scientists should turn to hierarchies of nonlinear classical systems rather than quantum theory for explanations of the brain's mysterious behaviour.
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  22. Early Quantum Theory Genesis: Reconciliation of Maxwellian Electrodynamics, Thermodynamics and Statistical Mechanics.Rinat M. Nugayev - 2000 - Annales de la Fondation Louis de Broglie 25 (3-4):337-362.
    Genesis of the early quantum theory represented by Planck’s 1897-1906 papers is considered. It is shown that the first quantum theoretical schemes were constructed as crossbreed ones composed from ideal models and laws of Maxwellian electrodynamics, Newtonian mechanics, statistical mechanics and thermodynamics. Ludwig Boltzmann’s ideas and technique appeared to be crucial. Deriving black-body radiation law Max Planck had to take the experimental evidence into account. It forced him not to deduce from phenomena but to use more (...) instead. The experiments forced Planck to apply the statistical technique to radiation in increasing portions. Planck’s theories in no way were generalizations of existing experimental results. They represented the stages of an ambitious programme of Maxwellian electrodynamics and statistical mechanics reconciliation. (shrink)
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  23. Meaning Quantum Theory.Jim Baggott - 2000 - Oxford University Press UK.
    The author looks at the continuing debate about the meaning of quantum theory. The historical development of the theory is traced from the turn of the century through to the 1930's, and the famous debate between Niels Bohr and Albert Einstein.
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  24.  22
    Quantum Theories of Consciousness.Paavo Pylkkänen - 2018 - In Rocco J. Gennaro (ed.), The Routledge Handbook of Consciousness. New York, NY, USA: pp. 216-231.
    This paper provides a brief introduction to quantum theory and the proceeds to discuss the different ways in which the relationship between quantum theory and mind/consciousness is seen in some of the main alternative interpretations of quantum theory namely by Bohr; von Neumann; Penrose: Everett; and Bohm and Hiley. It briefly considers how qualia might be explained in a quantum framework, and makes a connection to research on quantum biology, quantum cognition (...)
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  25. Quantum Theory From Small to Large Scales.Jürg Fröhlich (ed.) - 2012 - Oxford University Press.
     
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  26.  68
    Weak Quantum Theory and the Emergence of Time.Hartmann Romer - 2004 - Mind and Matter 2 (2):105-125.
    We present a scenario describing how time emerges in the framework of weak quantum theory. In a process similar to the emergence of time in quantum cosmology, time arises after an epistemic split of an undivided unus mundus as a quality of the individual conscious mind. Synchronization with matter and other mental systems is achieved by entanglement correlations. In the course of its operationalization, time loses its original quality and the time of physics as measured by clocks (...)
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  27.  80
    Quantum Theory and the Observation Problem.Ravi V. Gomatam - 1999 - Journal of Consciousness Studies 6 (11-12):11-12.
    Although quantum theory is applicable, in principle, to both the microscopic and macroscopic realms, the strategy of practically applying quantum theory by retaining a classical conception of the macroscopic world has had tremendous success. This has nevertheless rendered the task of interpretation daunting. We argue the need for recognizing and solving the ‘observation problem', namely constructing a ‘quantum-compatible’ view of the properties and states of macroscopic objects in everyday thinking to realistically interpret quantum (...) consistently at both the microscopic and macroscopic levels. Toward a solution to this problem, we point out a category of properties called ‘relational properties’ that we regularly associate with everyday objects. We see them as being potentially quantum-compatible. Some possible physical implications are discussed. We conclude by touching upon the nexus between the relational property view within quantum physics and some neurobiological issues underlying cognition. (shrink)
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  28.  38
    Quantum Theory and Human Perception of the Macro-World.Diederik Aerts - 2014 - Frontiers in Psychology 5.
  29. Quantum Theory Centenary: The Pre- and Early History.Dieter Hoffmann, J. Lemmerich & Ann Hentschel (eds.) - 2000 - Deutsche Physikalische Gesellschaft.
  30. Quantum Theory and Consciousness: An Overview with Selected Examples.Harald Atmanspacher - 2004 - Discrete Dynamics in Nature and Society 1:51-73.
    It is widely accepted that consciousness or, in other words, mental activity is in some way correlated to the behavior of the brain or, in other words, material brain activity. Since quantum theory is the most fundamental theory of matter that is currently available, it is a legitimate question to ask whether quantum theory can help us to understand consciousness. Several approaches answering this question a?rmatively, proposed in recent decades, will be surveyed. It will be (...)
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  31. Quantum Theory and the Place of Mind in the Causal Order of Things.Paavo Pylkkänen - 2019 - In J. De Barros & Carlos Montemayor (eds.), Quanta and Mind: Essays on the Connection between Quantum Mechanics and the Consciousness. Cham, Switzerland: Springer Publishing Company. pp. 163-171.
    The received view in physicalist philosophy of mind assumes that causation can only take place at the physical domain and that the physical domain is causally closed. It is often thought that this leaves no room for mental states qua mental to have a causal influence upon the physical domain, leading to epiphenomenalism and the problem of mental causation. However, in recent philosophy of causation there has been growing interest in a line of thought that can be called causal antifundamentalism: (...)
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  32.  91
    Generalized Quantum Theory: Overview and Latest Developments. [REVIEW]Thomas Filk & Hartmann Römer - 2011 - Axiomathes 21 (2):211-220.
    The main formal structures of generalized quantum theory are summarized. Recent progress has sharpened some of the concepts, in particular the notion of an observable, the action of an observable on states (putting more emphasis on the role of proposition observables), and the concept of generalized entanglement. Furthermore, the active role of the observer in the structure of observables and the partitioning of systems is emphasized.
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  33.  24
    Can Quantum Theory and Special Relativity Peacefully Coexist?M. P. Seevinck - unknown
    This white paper aims to identify an open problem in 'Quantum Physics and the Nature of Reality' -namely whether quantum theory and special relativity are formally compatible-, to indicate what the underlying issues are, and put forward ideas about how the problem might be addressed.
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  34. How Quantum Theory Helps Us Explain.Richard Healey - 2012 - British Journal for the Philosophy of Science (1):axt031.
    I offer an account of how the quantum theory we have helps us explain so much. The account depends on a pragmatist interpretation of the theory: this takes a quantum state to serve as a source of sound advice to physically situated agents on the content and appropriate degree of belief about matters concerning which they are currently inevitably ignorant. The general account of how to use quantum states and probabilities to explain otherwise puzzling regularities (...)
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  35. On Quantum Theories of the Mind.Henry P. Stapp - 1999 - Journal of Consciousness Studies 6 (1):61-65.
    Replies are given to arguments advanced in this journal that claim to show that it is to nonlinear classical mechanics rather than quantum mechanics that one must look for the physical underpinnings of conscious ness..
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  36.  24
    Quantum Theory is an Information Theory: The Operational Framework and the Axioms.Giacomo M. D’Ariano & Paolo Perinotti - 2016 - Foundations of Physics 46 (3):269-281.
    In this paper we review the general framework of operational probabilistic theories, along with the six axioms from which quantum theory can be derived. We argue that the OPT framework along with a relaxed version of five of the axioms, define a general information theory. We close the paper with considerations about the role of the observer in an OPT, and the interpretation of the von Neumann postulate and the Schrödinger-cat paradox.
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  37.  43
    Can Quantum Theory Be Applied to the Universe as a Whole?Claus Kiefer - 2010 - Foundations of Physics 40 (9-10):1410-1418.
    I argue that quantum theory can, and in fact must, be applied to the Universe as a whole. After a general introduction, I discuss two concepts that are essential for my chain of arguments: the universality of quantum theory and the emergence of classical behaviors by decoherence. A further motivation is given by the open problem of quantum gravity. I then present the main ingredients of quantum cosmology and discuss their relevance for the interpretation (...)
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  38. Quantum Theory: A Philosopher's Overview.Salvator Cannavo - 2009 - State University of New York Press.
    Explores what can be known within quantum theory, with special emphasis on the difference between prediction and explanation.
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  39.  73
    Quantum Theory and Neuroplasticity: Implications for Social Theory.William J. Long - 2006 - Journal of Theoretical and Philosophical Psychology 26 (1-2):78-94.
    Quantum theoretical developments in physical science challenge the foundational assumptions of both realist and constructivist social paradigms. Furthermore, when quantum metaphysics is coupled with biological, neuro-scientific discoveries that the brain regenerates and reprograms itself throughout life in response to environmental challenges and the force of attention and will, the result is a different picture of human nature and the social behavior that is possible, ethical, and scientifically plausible than that suggested by either social realists or constructivists. This article (...)
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  40.  10
    Quantum Theory, Intrinsic Value, and Panentheism.Michael E. Zimmerman - 1988 - Environmental Ethics 10 (1):3-30.
    J. Baird Callicott seeks to resolve the problem of the intrinsic value of nature by utilizing a nondualistic paradigm derived from quantum theory. His approach is twofold. According to his less radical approach, quantum theory shows that properties once considered to be “primary” and “objective” are in fact the products of interactions between observer and observed. Values are also the products of such interactions. According to his more radical approach, quantum theory’s doctrine of internal (...)
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  41.  33
    Quantum Theory as a Critical Regime of Language Dynamics.Alexei Grinbaum - 2015 - Foundations of Physics 45 (10):1341-1350.
    Some mathematical theories in physics justify their explanatory superiority over earlier formalisms by the clarity of their postulates. In particular, axiomatic reconstructions drive home the importance of the composition rule and the continuity assumption as two pillars of quantum theory. Our approach sits on these pillars and combines new mathematics with a testable prediction. If the observer is defined by a limit on string complexity, information dynamics leads to an emergent continuous model in the critical regime. Restricting it (...)
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  42.  48
    Unitary Quantum Theory is Incompatible with Special Relativity.Shan Gao - unknown
    It is shown that the combination of unitary quantum theory and special relativity may lead to a contradiction when considering the EPR correlations in different inertial frames in a Gedankenexperiment. This result seems to imply that either unitary quantum theory is wrong or if unitary quantum theory is right then there must exist a preferred Lorentz frame.
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  43.  58
    Founding Quantum Theory on the Basis of Consciousness.Efstratios Manousakis - 2006 - Foundations of Physics 36 (6):795-838.
    In the present work, quantum theory is founded on the framework of consciousness, in contrast to earlier suggestions that consciousness might be understood starting from quantum theory. The notion of streams of consciousness, usually restricted to conscious beings, is extended to the notion of a Universal/Global stream of conscious flow of ordered events. The streams of conscious events which we experience constitute sub-streams of the Universal stream. Our postulated ontological character of consciousness also consists of an (...)
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  44.  52
    The Quantum Theory of Fields.David Wallace - 2021 - In Eleanor Knox & Alistair Wilson (eds.), The Routledge Companion to Philosophy of Physics.
    I give an introduction to the conceptual structure of quantum field theory as it is used in mainstream theoretical physics today, aimed at non-specialists. My main focuses in the article are the common structure of quantum field theory as it is applied in solid-state physics and as it is applied in high-energy physics; the modern theory of renormalisation.
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  45. Characterizing Quantum Theory in Terms of Information-Theoretic Constraints.Rob Clifton, Jeffrey Bub & Hans Halvorson - 2002 - Foundations of Physics 33 (11):1561-1591.
    We show that three fundamental information-theoretic constraints -- the impossibility of superluminal information transfer between two physical systems by performing measurements on one of them, the impossibility of broadcasting the information contained in an unknown physical state, and the impossibility of unconditionally secure bit commitment -- suffice to entail that the observables and state space of a physical theory are quantum-mechanical. We demonstrate the converse derivation in part, and consider the implications of alternative answers to a remaining open (...)
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  46. Why Quantum Theory is Possibly Wrong.Holger Lyre - 2010 - Foundations of Physics 40 (9-10):1429-1438.
    Quantum theory is a tremendously successful physical theory, but nevertheless suffers from two serious problems: the measurement problem and the problem of interpretational underdetermination. The latter, however, is largely overlooked as a genuine problem of its own. Both problems concern the doctrine of realism, but pull, quite curiously, into opposite directions. The measurement problem can be captured such that due to scientific realism about quantum theory common sense anti-realism follows, while theory underdetermination usually counts (...)
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  47.  67
    Quantum Theory From Four of Hardy's Axioms.Rüdiger Schack - 2003 - Foundations of Physics 33 (10):1461-1468.
    In a recent paper [e-print quant-ph/0101012], Hardy has given a derivation of “quantum theory from five reasonable axioms.” Here we show that Hardy's first axiom, which identifies probability with limiting frequency in an ensemble, is not necessary for his derivation. By reformulating Hardy's assumptions, and modifying a part of his proof, in terms of Bayesian probabilities, we show that his work can be easily reconciled with a Bayesian interpretation of quantum probability.
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  48.  16
    A Quantum Theory of Money and Value, Part 2: The Uncertainty Principle.David Orrell - 2017 - Economic Thought 6 (2):14.
    Economic forecasting is famously unreliable. While this problem has traditionally been blamed on theories such as the efficient market hypothesis or even the butterfly effect, an alternative explanation is the role of money – something which is typically downplayed or excluded altogether from economic models. Instead, models tend to treat the economy as a kind of barter system in which money's only role is as an inert medium of exchange. Prices are assumed to almost perfectly reflect the 'intrinsic value' of (...)
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  49.  39
    Quantum Theory is Not Only About Information.Laura Felline - 2020 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 72:256-265.
    In his recent book Bananaworld. Quantum mechanics for primates, Jeff Bub revives and provides a mature version of his influential information-theoretic interpretation of Quantum Theory (QT). In this paper, I test Bub’s conjecture that QT should be interpreted as a theory about information, by examining whether his information-theoretic interpretation has the resources to explain (or explain away) quantum conundrums. The discussion of Bub’s theses will also serve to investigate, more in general, whether other approaches succeed (...)
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  50. Quantum Theory and the Relation Between the Conscious Mind and the Physical World.Euan J. Squires - 1993 - Synthese 97 (1):109-23.
    The measurement problem of quantum theory is discussed, and the difficulty of trying to solve it within the confines of a local, Lorentz-invariant physics is emphasised. This leads to the obvious suggestion to seek a solution beyond physics, in particular, by introducing the concept of consciousness. The resulting dualistic model, in the natural form suggested by quantum theory, is shown to differ in several respects from the classical model of Descartes, and to suggest solutions to some (...)
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