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On the reality of the global phase

Wallace, David (2022) On the reality of the global phase. [Preprint]

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Abstract

I respond to a recent argument by David Schroeren (Phil.Sci., forthcoming; philsci-archive.pitt.edu/20419/) that - contrary to a very wide consensus - global phase in quantum mechanics is real. I argue that Schroeren's argument rests on a mistaken assumption about projective representation theory and that, when this is corrected, the argument no longer follows. In doing so I give a brief introduction to projective representation theory.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Wallace, Daviddavid.wallace@pitt.edu
Keywords: projective representations representation theory phase quantum mechanics symmetry
Subjects: Specific Sciences > Physics > Quantum Mechanics
Specific Sciences > Physics > Symmetries/Invariances
Depositing User: Professor David Wallace
Date Deposited: 16 Apr 2022 04:13
Last Modified: 16 Apr 2022 04:13
Item ID: 20455
Subjects: Specific Sciences > Physics > Quantum Mechanics
Specific Sciences > Physics > Symmetries/Invariances
Date: April 2022
URI: http://philsci-archive.pitt.edu/id/eprint/20455

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