Loop Quantum Gravity: A New Threat to Humeanism? Part I: The Problem of Spacetime View Full Text


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Article Info

DATE

2019-03

AUTHORS

Vera Matarese

ABSTRACT

In this paper, I discuss whether the results of loop quantum gravity (LQG) constitute a fatal blow to Humeanism. There is at least a prima facie reason for believing so: while Humeanism regards spatiotemporal relations as fundamental, LQG describes the fundamental layer of our reality in terms of spin networks, which are not in spacetime. However, the question should be tackled more carefully. After explaining the importance of the debate on the tenability of Humeanism in light of LQG, and having presented the Humean doctrine, I review two cases which present serious threats to Humeanism, one concerning the fundamentality of vectorial quantities and the other concerning quantum entanglement. In particular, I recall the strategies that are usually employed in these two cases in order to save Humeanism: in the first case, the strategy consists in amending the characterization of the Humean mosaic; in the second case, it consists in adopting a realist or nomological interpretation of the wave function. These solutions will turn out to be helpful in my discussion of LQG where, after describing LQG, I show that Humeans might save their doctrine either by endorsing a realist interpretation of spin networks, or by giving them a nomological status and, at the same time, by revisiting the characterization of the Humean mosaic. However, I conclude that both solutions are wanting. More... »

PAGES

232-259

References to SciGraph publications

  • 1992-06. Quantum equilibrium and the origin of absolute uncertainty in JOURNAL OF STATISTICAL PHYSICS
  • 2015-10. One world, one beable in SYNTHESE
  • 2016. Effective Spacetime in NONE
  • 2000-10. Humean Supervenience? in PHILOSOPHICAL STUDIES
  • 1988-01. Spacetime and the abstract/concrete distinction in PHILOSOPHICAL STUDIES
  • 2012-01. Quantum states for primitive ontologists in EUROPEAN JOURNAL FOR PHILOSOPHY OF SCIENCE
  • 2008-12. Loop Quantum Gravity in LIVING REVIEWS IN RELATIVITY
  • 1996. Elementary Quantum Metaphysics in BOHMIAN MECHANICS AND QUANTUM THEORY: AN APPRAISAL
  • 2014-01. A Proposal for a Bohmian Ontology of Quantum Gravity in FOUNDATIONS OF PHYSICS
  • 1996. Pilot-Wave Theory of Fields, Gravitation and Cosmology in BOHMIAN MECHANICS AND QUANTUM THEORY: AN APPRAISAL
  • 2009-07. A better best system account of lawhood in PHILOSOPHICAL STUDIES
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  • 1996. Cause and Effect in the Pilot-Wave Interpretation of Quantum Mechanics in BOHMIAN MECHANICS AND QUANTUM THEORY: AN APPRAISAL
  • Journal

    TITLE

    Foundations of Physics

    ISSUE

    3

    VOLUME

    49

    Author Affiliations

    Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s10701-019-00242-6

    DOI

    http://dx.doi.org/10.1007/s10701-019-00242-6

    DIMENSIONS

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