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Open Quantum Systems Decoherence Entanglement Theory Quantum Correlations

Wigner's friend, Feynman's paths and material records

arXiv

Authors: A. Matzkin, D. Sokolovski

Year

2020

Paper ID

21013

Status

Preprint

Abstract Read

~2 min

Abstract Words

105

Citations

N/A

Abstract

The place and role of an Observer in quantum mechanics has been a subject of an ongoing debate since the theory's inception. Wigner brought this question to the fore in a celebrated scenario in which a super-Observer observes a Friend making a measurement. Here we briefly review why this \e{Wigner Friend scenario} has been taken to require the introduction of the Observer's consciousness, or alternatively to show the inconsistency of quantum measurement theory. We will argue that quantum theory can consistently leave observers outside its narrative, by making only minimal assumptions about how the information about the observed results is stored in material records.

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This paper contributes to the Entanglement Theory & Quantum Correlations research area in the Quantum Articles archive.
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The place and role of an Observer in quantum mechanics has been a subject of an ongoing debate since the theory's inception.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2009.01113 [2] arXiv https://arxiv.org/abs/2009.01113 [3] Publisher https://arxiv.org/abs/2009.01113

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