Is a nondemolition measurement of the quantum state vector collapse of a remote localised system possible?

By the example of an experiment that implements, according to its authors, Wigner friends' paradox, the impossibility of measuring the state vector collapse of a remote localised system is shown. It is also found that the objectivity of the results of quantum measurements is not violated in thi...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2020-05, Vol.50 (5), p.469-474
Main Author: Belinsky, A.V.
Format: Article
Language:English
Subjects:
Bell inequality
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Clauser - Horne - Shimony - Holt inequality
no communication theorem
QUANTUM MECHANICS
quantum nondemolition measurements
quantum state vector
QUANTUM STATES
SECURITY
State vectors
von Neumann projection postulate
Wigner friends' paradox
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Summary:By the example of an experiment that implements, according to its authors, Wigner friends' paradox, the impossibility of measuring the state vector collapse of a remote localised system is shown. It is also found that the objectivity of the results of quantum measurements is not violated in this case.
ISSN:1063-7818
1468-4799
DOI:10.1070/QEL17191