Perspectival Quantum Realism View Full Text


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Article Info

DATE

2022-08-22

AUTHORS

Dennis Dieks

ABSTRACT

The theories of pre-quantum physics are standardly seen as representing physical systems and their properties. Quantum mechanics in its standard form is a more problematic case: here, interpretational problems have led to doubts about the tenability of realist views. Thus, QBists and Quantum Pragmatists maintain that quantum mechanics should not be thought of as representing physical systems, but rather as an agent-centered tool for updating beliefs about such systems. It is part and parcel of such views that different agents may have different beliefs and may assign different quantum states. What results is a collection of agent-centered perspectives rather than a unique representation of the physical world. In this paper we argue that the problems identified by QBism and Quantum Pragmatism do not necessitate abandoning the ideal of representing the physical world. We can avail ourselves of the same puzzle-solving strategies as employed by QBists and pragmatists by adopting a perspectival quantum realism. According to this perspectivalism (close to the relational interpretation of quantum mechanics) objects may possess different, but equally objective properties with respect to different physically defined perspectives. We discuss two options for such a perspectivalism, a local and a nonlocal one, and apply them to Wigner’s friend and EPR scenarios. Finally, we connect quantum perspectivalism to the recently proposed philosophical position of fragmentalism. More... »

PAGES

95

References to SciGraph publications

  • 2018-10-09. On the fragmentalist interpretation of special relativity in PHILOSOPHICAL STUDIES
  • 2007-02-03. Relational EPR in FOUNDATIONS OF PHYSICS
  • 1995-01. The modal interpretation of quantum mechanics and its generalization to density operators in FOUNDATIONS OF PHYSICS
  • 2002-05. A Perspectival Version of the Modal Interpretation of Quantum Mechanics and the Origin of Macroscopic Behavior in FOUNDATIONS OF PHYSICS
  • 1996-08. Relational quantum mechanics in INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS
  • 2020-08-24. Is the world a heap of quantum fragments? in PHILOSOPHICAL STUDIES
  • 2016-12-11. On Participatory Realism in INFORMATION AND INTERACTION
  • 2015-02-26. Pure wave mechanics and the very idea of empirical adequacy in SYNTHESE
  • 2019-05-22. Quantum Reality, Perspectivalism and Covariance in FOUNDATIONS OF PHYSICS
  • 2011-03-23. Everett’s pure wave mechanics and the notion of worlds in EUROPEAN JOURNAL FOR PHILOSOPHY OF SCIENCE
  • 2015-02-14. On Fine’s fragmentalism in PHILOSOPHICAL STUDIES
  • 2021-10-04. A Quintet of Quandaries: Five No-Go Theorems for Relational Quantum Mechanics in FOUNDATIONS OF PHYSICS
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s10701-022-00611-8

    DOI

    http://dx.doi.org/10.1007/s10701-022-00611-8

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1150402786


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