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Cited by 432

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Bell's Inequalities and Density Matrices: Revealing “Hidden” Nonlocality

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Popescu, Sandu·1995·Physical Review Letters

Abstract

Standard Bell inequalities apply to correlations arising when two or more macroscopically separated systems are each subjected to a single ideal measurement. While these inequalities demonstrate that quantum mechanics and local hidden variable theories yield incompatible predictions for pure states, they fail for mixed states: For mixed states, correlations arising from a single ideal measurement on each system may obey standard Bell inequalities, yet when each system is subjected to a sequence of ideal measurements the correlations are nonlocal. For some situations even this last procedure fails, and we must consider more complex (``nonideal'') measurements.

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Metadata

Authors
Popescu, S.
Venue
Physical Review Letters
Published
1995-04-03
Volume
74
Issue
14
Pages
2619-2622
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2166400453
Cited by
432
References
12
FWCI
6.83
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Bell's Inequalities and Density Matrices: Revealing “Hidden” Nonlocality. https://app.cochat.ai/papers/10.1103/physrevlett.74.2619
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Popescu, S. (1995). Bell's Inequalities and Density Matrices: Revealing “Hidden” Nonlocality. Physical Review Letters. https://doi.org/10.1103/physrevlett.74.2619

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