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David John Baker [13]David J. Baker [3]David J. Baker [1]
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Profile: David Baker (University of Michigan, Ann Arbor)
  1. How is Spontaneous Symmetry Breaking Possible? Understanding Wigner's Theorem in Light of Unitary Inequivalence.David John Baker & Hans Halvorson - 2013 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 44 (4):464-469.
    We pose and resolve a puzzle about spontaneous symmetry breaking in the quantum theory of infinite systems. For a symmetry to be spontaneously broken, it must not be implementable by a unitary operator in a ground state's GNS representation. But Wigner's theorem guarantees that any symmetry's action on states is given by a unitary operator. How can this unitary operator fail to implement the symmetry in the GNS representation? We show how it is possible for a unitary operator of this (...)
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  2.  59
    Identity, Superselection Theory, and the Statistical Properties of Quantum Fields.David John Baker - 2013 - Philosophy of Science 80 (2):262-285.
    The permutation symmetry of quantum mechanics is widely thought to imply a sort of metaphysical underdetermination about the identity of particles. Despite claims to the contrary, this implication does not hold in the more fundamental quantum field theory, where an ontology of particles is not generally available. Although permutations are often defined as acting on particles, a more general account of permutation symmetry can be formulated using superselection theory. As a result, permutation symmetry applies even in field theories with no (...)
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  3. Symmetry and the Metaphysics of Physics.David John Baker - 2010 - Philosophy Compass 5 (12):1157-1166.
    The widely held picture of dynamical symmetry as surplus structure in a physical theory has many metaphysical applications. Here, I focus on its relevance to the question of which quantities in a theory represent fundamental natural properties.
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  4. Spacetime Substantivalism and Einstein's Cosmological Constant.David J. Baker - 2005 - Philosophy of Science 72 (5):1299-1311.
    I offer a novel argument for spacetime substantivalism: We should take the spacetime of general relativity to be a substance because of its active role in gravitational causation. As a clear example of this causal behavior I offer the cosmological constant, a term in the most general form of the Einstein field equations which causes free floating objects to accelerate apart. This acceleration cannot, I claim, be causally explained except by reference to spacetime itself.
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  5.  2
    Measurement Outcomes and Probability in Everettian Quantum Mechanics.David J. Baker - 2007 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 38 (1):153-169.
  6.  44
    The Conventionality of Parastatistics.David John Baker, Hans Halvorson & Noel Swanson - 2015 - British Journal for the Philosophy of Science 66 (4):929-976.
    Nature seems to be such that we can describe it accurately with quantum theories of bosons and fermions alone, without resort to parastatistics. This has been seen as a deep mystery: paraparticles make perfect physical sense, so why don’t we see them in nature? We consider one potential answer: every paraparticle theory is physically equivalent to some theory of bosons or fermions, making the absence of paraparticles in our theories a matter of convention rather than a mysterious empirical discovery. We (...)
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  7. The Conventionality of Parastatistics.David John Baker, Hans Halvorson & Noel Swanson - 2014 - British Journal for the Philosophy of Science (4):axu018.
    Nature seems to be such that we can describe it accurately with quantum theories of bosons and fermions alone, without resort to parastatistics. This has been seen as a deep mystery: paraparticles make perfect physical sense, so why don’t we see them in nature? We consider one potential answer: every paraparticle theory is physically equivalent to some theory of bosons or fermions, making the absence of paraparticles in our theories a matter of convention rather than a mysterious empirical discovery. We (...)
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  8.  50
    Does String Theory Posit Extended Simples?David John Baker - 2016 - Philosophers' Imprint 16 (18).
    It is sometimes claimed that string theory posits a fundamental ontology including extended mereological simples, in the form either of minimum-sized regions of space or of the strings themselves. But there is very little in the actual theory to support this claim, and much that suggests it is false. Extant string theories treat space as a continuum, and strings do not behave like simples.
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  9.  47
    The Philosophy of Quantum Field Theory.David John Baker - unknown
    If we divide our physical theories into theories of matter and theories of spacetime, quantum field theory is our most fundamental empirically successful theory of matter. As such, it has attracted increasing attention from philosophers over the past two decades, beginning to eclipse its predecessor theory of quantum mechanics in the philosophical literature. Here I survey some central philosophical puzzles about the theory's foundations.
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  10.  31
    Review of David Albert, After Physics. [REVIEW]David John Baker - unknown
  11.  25
    Review: Frank Arntzenius: Space, Time, and Stuff. [REVIEW]David John Baker - forthcoming - Philosophical Explorations.
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  12.  21
    Gauging What's Real: The Conceptual Foundations of Gauge Theories, by Richard Healey.David John Baker - 2010 - Mind 119 (474):490-494.
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  13.  1
    Perception of Leitmotives in Richard Wagner's Der Ring des Nibelungen.David J. Baker & Daniel Müllensiefen - 2017 - Frontiers in Psychology 8.
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  14.  6
    Frank Arntzenius,Space, Time, and Stuff. Oxford: Oxford University Press , 320 Pp., $49.50.David John Baker - 2014 - Philosophy of Science 81 (1):171-174.
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  15.  22
    Review of Richard Healey, Gauging What's Real. [REVIEW]David John Baker - unknown
    Review of Richard Healey's 2008 book. To appear in MIND.
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  16. 1. Really Statistical Explanations and Genetic Drift Really Statistical Explanations and Genetic Drift (Pp. 169-188).Marc Lange, Peter Vickers, John Michael, Miles MacLeod, Alexander R. Pruss, David John Baker, Clark Glymour & Simon Fitzpatrick - 2013 - Philosophy of Science 80 (2).
     
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  17.  2
    Ea and Knowing in Hawai'i.David J. Baker - 1997 - Critical Inquiry 23 (3):640-659.
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