22 found
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  1. Superluminal Signaling and Relativity.Steven Weinstein - 2006 - Synthese 148 (2):381-399.
    Special relativity is said to prohibit faster-than-light (superluminal) signaling, yet controversy regularly arises as to whether this or that physical phenomenon violates the prohibition. I argue that the controversy is a result of a lack of clarity as to what it means to ‘signal’, and I propose a criterion. I show that according to this criterion, superluminal signaling is not prohibited by special relativity.
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  2.  39
    Is the Brain a Quantum Computer?Abninder Litt, Chris Eliasmith, Fred Kroon, Steven Weinstein & Paul Thagard - 2006 - Cognitive Science 30 (3):593-603.
    We argue that computation via quantum mechanical processes is irrelevant to explaining how brains produce thought, contrary to the ongoing speculations of many theorists. First, quantum effects do not have the temporal properties required for neural information processing. Second, there are substantial physical obstacles to any organic instantiation of quantum computation. Third, there is no psychological evidence that such mental phenomena as consciousness and mathematical thinking require explanation via quantum theory. We conclude that understanding brain function is unlikely to require (...)
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  3.  28
    Quantum Gravity.Steven Weinstein - 2008 - Stanford Encyclopedia of Philosophy.
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  4. Anthropic Reasoning in Multiverse Cosmology and String Theory.Steven Weinstein - unknown
    Anthropic arguments in multiverse cosmology and string theory rely on the weak anthropic principle (WAP). We show that the principle, though ultimately a tautology, is nevertheless ambiguous. It can be reformulated in one of two unambiguous ways, which we refer to as WAP_1 and WAP_2. We show that WAP_2, the version most commonly used in anthropic reasoning, makes no physical predictions unless supplemented by a further assumption of "typicality", and we argue that this assumption is both misguided and unjustified. WAP_1, (...)
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  5.  95
    Nonlocality Without Nonlocality.Steven Weinstein - 2009 - Foundations of Physics 39 (8):921-936.
    Bell’s theorem is purported to demonstrate the impossibility of a local “hidden variable” theory underpinning quantum mechanics. It relies on the well-known assumption of ‘locality’, and also on a little-examined assumption called ‘statistical independence’ (SI). Violations of this assumption have variously been thought to suggest “backward causation”, a “conspiracy” on the part of nature, or the denial of “free will”. It will be shown here that these are spurious worries, and that denial of SI simply implies nonlocal correlation between spacelike (...)
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  6. Gravity and Gauge Theory.Steven Weinstein - 1999 - Philosophy of Science 66 (3):155.
    Gauge theories are theories that are invariant under a characteristic group of "gauge" transformations. General relativity is invariant under transformations of the diffeomorphism group. This has prompted many philosophers and physicists to treat general relativity as a gauge theory, and diffeomorphisms as gauge transformations. I argue that this approach is misguided.
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  7. Objectivity, Information, and Maxwell's Demon.Steven Weinstein - 2003 - Philosophy of Science 70 (5):1245-1255.
    This paper examines some common measures of complexity, structure, and information, with an eye toward understanding the extent to which complexity or information‐content may be regarded as objective properties of individual objects. A form of contextual objectivity is proposed which renders the measures objective, and which largely resolves the puzzle of Maxwell's Demon.
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  8.  23
    Strange Couplings and Space-Time Structure.Steven Weinstein - 1996 - Philosophy of Science 63 (3):70.
    General relativity is commonly thought to imply the existence of a unique metric structure for space-time. A simple example is presented of a general relativistic theory with ambiguous metric structure. Brans-Dicke theory is then presented as a further example of a space-time theory in which the metric structure is ambiguous. Other examples of theories with ambiguous metrical structure are mentioned. Finally, it is suggested that several new and interesting philosophical questions arise from the sorts of theories discussed.
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  9.  82
    Undermind.Steven Weinstein - 1996 - Synthese 106 (2):241 - 251.
    David Albert and Barry Loewer have proposed a new interpretation of quantum mechanics which they call the Many Minds interpretation, according to which there are infinitely many minds associated with a given (physical) state of a brain. This interpretation is related to the family of many worlds interpretations insofar as it assumes strictly unitary (Schrödinger) time-evolution of quantum-mechanical systems (no reduction of the wave-packet). The Many Minds interpretation itself is principally motivated by an argument which purports to show that the (...)
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  10.  47
    Review of "Space, Time, and Stuff", Frank Arntzenius, OUP 2012. [REVIEW]Steven Weinstein - unknown
    Review of "Space, Time, and Stuff" by Frank Arntzenius.
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  11.  76
    Absolute Quantum Mechanics.Steven Weinstein - 2001 - British Journal for the Philosophy of Science 52 (1):67-73.
    Whereas one can conceive of a relational classical mechanics in which absolute space and time do not play a fundamental role, quantum mechanics does not readily admit any such relational formulation.
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  12.  38
    Patterns in the Fabric of Nature.Steven Weinstein - unknown
    From classical mechanics to quantum field theory, the physical facts at one point in space are held to be independent of those at other points in space. I propose that we can usefully challenge this orthodoxy in order to explain otherwise puzzling correlations at both cosmological and microscopic scales.
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  13.  23
    Space, Time, and Stuff.Steven Weinstein - 2013 - International Studies in the Philosophy of Science 27 (1):98 - 101.
  14.  11
    Reinhard Kahle and Peter Schroeder-Heister.Steven Weinstein, Substantive General Covariance & Eugen Fischer - 2006 - Synthese 148 (1):745-747.
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  15.  15
    General Relativity and Quantum Theory—Ontological Investigations.Steven Weinstein - 1999 - In S. Smets J. P. Van Bendegem G. C. Cornelis (ed.), Metadebates on Science. Vub-Press & Kluwer. pp. 6--267.
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  16.  24
    Review of Palle Yourgrau's "Gödel Meets Einstein: Time Travel in the Gödel Universe.". [REVIEW]Steven Weinstein - unknown
    This is a review of Yourgrau's book, the second edition of his "The Disappearance of Time.".
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  17.  19
    Naive Quantum Gravity.Steven Weinstein - unknown
    In this paper we consider a naive conception of what a quantum theory of gravity might entail: a quantum-mechanically fluctuating gravitational field at each spacetime point. We argue that this idea is problematic both conceptually and technically.
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  18.  3
    Superluminal Signalling.Steven Weinstein - unknown
    Special relativity is said to prohibit faster-than-light (superluminal) signalling, yet controversy regularly arises as to whether this or that physical phenomenon violates the prohibition. I argue that the controversy is a result of a lack of clarity as to what it means to `signal', and I propose a criterion. I show that although we have no reason to think that one can send signals faster than light, this is not prohibited by special relativity.
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  19. Conceptual and Foundational Issues in the Quantization of Gravity.Steven Weinstein - 1998 - Dissertation, Northwestern University
    The quantization of gravity represents an important attempt at reconciling the two seemingly incompatible frameworks that lie at the base of modern physics, quantum theory and general relativity. The dissertation begins by looking at the incompatibilities between the two frameworks. The incompatibility with quantum theory, it is argued, is rooted in the profound differences between general relativity and ordinary field theories. The dissertation goes on to look at how, in practice, these incongruities are treated in the canonical quantization program, and (...)
     
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  20. Godel Meets Einstein: Time Travel in the Godel Universe.Steven Weinstein & Palle Yourgrau - 2002 - Philosophical Review 111 (1):148.
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  21. Gödel Meets Einstein: Time Travel in the Gödel Universe. [REVIEW]Steven Weinstein - 2002 - Philosophical Review 111 (1):148-152.
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  22. Gã–Del Meets Einstein: Time Travel in the Gã–Del Universe.Steven Weinstein - 2002 - Philosophical Review 111 (1):148-152.
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