Berghofer, Philipp (2024) Quantum Reconstructions as Stepping Stones toward ψ-Doxastic Interpretations? Foundations of Physics, 54. ISSN 0015-9018

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Abstract

In quantum foundations, there is growing interest in the program of reconstructing the quantum formalism from clear physical principles. These reconstructions are formulated in an operational framework, deriving the formalism from information-theoretic principles. It has been recognized that this project is in tension with standard ψ-ontic interpretations. This paper presupposes that the quantum reconstruction program (QRP) (i) is a worthwhile project and (ii) puts pressure on ψ-ontic interpretations. Where does this leave us? Prima facie, it seems that ψ-epistemic interpretations perfectly fit the spirit of information-based reconstructions. However, ψ-epistemic interpretations, understood as saying that the wave functions represents one’s knowledge about a physical system, recently have been challenged on technical and conceptual grounds. More importantly, for some researchers working on reconstructions, the lesson of successful reconstructions is that the wave function does not represent objective facts about the world. Since knowledge is a factive concept, this speaks against epistemic interpretations. In this paper, I discuss whether ψ-doxastic interpretations constitute a reasonable alternative. My thesis is that if we want to engage QRP with ψ-doxastic interpretations, then we should aim at a reconstruction that is spelled out in non-factive experiential terms.

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Item Type:	Published Article or Volume
Creators:	Creators Email ORCID Berghofer, Philipp philipp.berghofer@uni-graz.at 0000-0002-9044-0637
Keywords:	philosophy of physics; foundations of quantum mechanics; wave function; quantum reconstructions; QBism; phenomenology
Subjects:	Specific Sciences > Computation/Information > Quantum Specific Sciences > Physics > Quantum Mechanics General Issues > Realism/Anti-realism
Depositing User:	Dr. Philipp Berghofer
Date Deposited:	09 Nov 2024 13:22
Last Modified:	09 Nov 2024 13:22
Item ID:	24189
Journal or Publication Title:	Foundations of Physics
Official URL:	https://link.springer.com/article/10.1007/s10701-0...
DOI or Unique Handle:	10.1007/s10701-024-00778-2
Subjects:	Specific Sciences > Computation/Information > Quantum Specific Sciences > Physics > Quantum Mechanics General Issues > Realism/Anti-realism
Date:	2024
Volume:	54
ISSN:	0015-9018
URI:	https://philsci-archive.pitt.edu/id/eprint/24189

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