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When Greenberger, Horne and Zeilinger meet Wigner's Friend

Leegwater, Gijs (2018) When Greenberger, Horne and Zeilinger meet Wigner's Friend. [Preprint]

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Abstract

A general argument is presented against relativistic, unitary, single-outcome quantum mechanics. This is achieved by combining the Wigner's Friend thought experiment with measurements on a Greenberger-Horne-Zeilinger (GHZ) state, and describing the evolution of the quantum state in various inertial frames. Assuming unitary quantum mechanics and single outcomes, the result is that the Born rule must be violated in some inertial frame: in that frame, outcomes are obtained for which no corresponding term exists in the pre-measurement wavefunction.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Leegwater, Gijsleegwater@esphil.eur.nl0000-0002-8398-0096
Keywords: Wigner's Friend Quantum Mechanics Bell's Theorem EPR GHZ Many-Worlds Bohmian Mechanics Modal Interpretations
Subjects: Specific Sciences > Computation/Information > Quantum
Specific Sciences > Physics > Quantum Mechanics
Depositing User: Mr. G. J. Leegwater
Date Deposited: 08 Nov 2018 14:03
Last Modified: 08 Nov 2018 14:03
Item ID: 15268
Subjects: Specific Sciences > Computation/Information > Quantum
Specific Sciences > Physics > Quantum Mechanics
Date: 6 November 2018
URI: https://philsci-archive-dev.library.pitt.edu/id/eprint/15268

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