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John Dougherty
Ludwig Maximilians Universität, München
  1.  67
    Black Hole Thermodynamics: More Than an Analogy?John Dougherty & Craig Callender - unknown
    Black hole thermodynamics is regarded as one of the deepest clues we have to a quantum theory of gravity. It motivates scores of proposals in the field, from the thought that the world is a hologram to calculations in string theory. The rationale for BHT playing this important role, and for much of BHT itself, originates in the analogy between black hole behavior and ordinary thermodynamic systems. Claiming the relationship is “more than a formal analogy,” black holes are said to (...)
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  2.  23
    The Hole Argument, take n.John Dougherty - 2020 - Foundations of Physics 50 (4):330-347.
    I apply homotopy type theory to the hole argument as formulated by Earman and Norton. I argue that HoTT gives a precise sense in which diffeomorphism-related Lorentzian manifolds represent the same spacetime, undermining Earman and Norton’s verificationist dilemma and common formulations of the hole argument. However, adopting this account does not alleviate worries about determinism: general relativity formulated on Lorentzian manifolds is indeterministic using this standard of sameness and the natural formalization of determinism in HoTT. Fixing this indeterminism results in (...)
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  3.  25
    Large Gauge Transformations and the Strong CP Problem.John Dougherty - 2020 - Studies in History and Philosophy of Science Part B: Studies in History and Philosophy of Modern Physics 69:50-66.
    According to the Standard Model of particle physics, some gauge transformations are physical symmetries. That is, they are mathematical transformations that relate representatives of distinct physical states of affairs. This is at odds with the standard philosophical position according to which gauge transformations are an eliminable redundancy in a gauge theory's representational framework. In this paper I defend the Standard Model's treatment of gauge from an objection due to Richard Healey. If we follow the Standard Model in taking some gauge (...)
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  4.  19
    Sameness and Separability in Gauge Theories.John Dougherty - 2016 - Philosophy of Science 84 (5):1189-1201.
    In the philosophical literature on Yang-Mills theories, field formulations are taken to have more structure and to be local, while curve-based formulations are taken to have less structure and to be nonlocal. I formalize the notion of locality at issue and show that theories with less structure are nonlocal. However, the amount of structure had by some formulation is independent of whether it uses fields or curves. The relevant difference in structure is not a difference in set-theoretic structure. Rather, it (...)
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  5.  25
    What Inductive Explanations Could Not Be.John Dougherty - 2018 - Synthese 195 (12):5473-5483.
    Marc Lange argues that proofs by mathematical induction are generally not explanatory because inductive explanation is irreparably circular. He supports this circularity claim by presenting two putative inductive explanantia that are one another’s explananda. On pain of circularity, at most one of this pair may be a true explanation. But because there are no relevant differences between the two explanantia on offer, neither has the explanatory high ground. Thus, neither is an explanation. I argue that there is no important asymmetry (...)
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  6.  7
    The Substantial Role of Weyl Symmetry in Deriving General Relativity From String Theory.John Dougherty - 2021 - Philosophy of Science 88 (5):1149-1160.
    String theory reduces to general relativity in appropriate regimes. Huggett and Vistarini have given an account of this reduction that includes a deflationary thesis about symmetry: although the usual derivation of general relativity from string theory appeals to a premise about the theory’s symmetry, Huggett and Vistarini argue that this premise plays no logical role. In this article I disagree with their deflationary thesis and argue that their analysis is based on a popular but flawed conception of the interaction between (...)
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  7.  6
    Elaine Landry, Ed., Categories for the Working Philosopher. Oxford: Oxford University Press (2017), Xiv+417 Pp., $110.00 (Cloth).John Dougherty - 2021 - Philosophy of Science 88 (4):754-757.
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  8.  8
    I Ain’T Afraid of No Ghost.John Dougherty - 2021 - Studies in History and Philosophy of Science Part A 88:70-84.
    This paper criticizes the traditional philosophical account of the quantization of gauge theories and offers an alternative. On the received view, gauge theories resist quantization because they feature distinct mathematical representatives of the same physical state of affairs. This resistance is overcome by a sequence of ad hoc modifications, justified in part by reference to semiclassical electrodynamics. Among other things, these modifications introduce "ghosts": particles with unphysical properties which do not appear in asymptotic states and which are said to be (...)
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  9.  16
    The Non-Ideal Theory of the Aharonov–Bohm Effect.John Dougherty - 2020 - Synthese (12):12195-12221.
    Elay Shech and John Earman have recently argued that the common topological interpretation of the Aharonov–Bohm (AB) effect is unsatisfactory because it fails to justify idealizations that it presupposes. In particular, they argue that an adequate account of the AB effect must address the role of boundary conditions in certain ideal cases of the effect. In this paper I defend the topological interpretation against their criticisms. I consider three types of idealization that might arise in treatments of the effect. First, (...)
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  10.  25
    A Few Points on Gunky Space.John Dougherty - manuscript
    Arntzenius proposed a mathematical model for gunky space, motivated in part by philosophical considerations, in part by considerations from quantum mechanics. After recasting this model in perspic- uous terms, I answer an unresolved technical question. Turning to quantum mechanics, I argue that the motivations for this model disregard important parts of the quantum formalism: the observables. When these are taken into account, gunk appears incompatible with quantum mechanics.
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