Titel
Device-independent quantification of measurement incompatibility
Autor*in
Shin-Liang Chen
Dahlem Center for Complex Quantum Systems, Freie Universität Berlin
Autor*in
Nikolai Miklin
International Centre for Theory of Quantum Technologies (ICTQT), University of Gdańsk
... show all
Abstract
Incompatible measurements, i.e., measurements that cannot be simultaneously performed, are necessary to observe nonlocal correlations. It is natural to ask, e.g., how incompatible the measurements have to be to achieve a certain violation of a Bell inequality. In this paper, we provide the direct link between Bell nonlocality and the quantification of measurement incompatibility. This includes quantifiers for both incompatible and genuine-multipartite incompatible measurements. Our method straightforwardly generalizes to include constraints on the system's dimension (semi-device-independent approach) and on projective measurements, providing improved bounds on incompatibility quantifiers, and to include the prepare-and-measure scenario.
Stichwort
NonlocalityQuantum correlations in quantum informationQuantum measurements
Objekt-Typ
Sprache
Englisch [eng]
Erschienen in
Titel
Physical Review Research
Band
3
Ausgabe
2
ISSN
2643-1564
Erscheinungsdatum
2021
Publication
American Physical Society (APS)
Projekt
Kod / Identifikator
ZK 3
Projekt
Kod / Identifikator
F7113
Erscheinungsdatum
2021
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