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23 Rue des Lavandières, 11160 Caunes Minervois, France
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Center for Field Theory and Particle Physics & Department of Physics, Fudan University, Shanghai 200433, China
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Quantum Reports 2019, 1(2), 252-259; https://doi.org/10.3390/quantum1020022
Received: 1 September 2019 / Revised: 8 November 2019 / Accepted: 8 November 2019 / Published: 13 November 2019
We show that sharing a quantum reference frame requires sharing measurement operators that identify the reference frame in addition to operators that measure its state. Observers restricted to finite resources cannot, in general, operationally determine that they share such operators. Uncertainty about whether system-identification operators are shared induces decoherence. View Full-Text
Keywords: classical communication; LOCC protocol; measurement; quantum Darwinism; quantum reference frame classical communication; LOCC protocol; measurement; quantum Darwinism; quantum reference frame
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Fields, C.; Marcianò, A. Sharing Nonfungible Information Requires Shared Nonfungible Information. Quantum Reports 2019, 1, 252-259.

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