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Abstract
Einstein-Podolsky-Rosen steering is a form of inseparability in quantum theory commonly acknowledged to be intermediate between entanglement and Bell nonlocality. However, this statement has so far only been proven for a restricted class of measurements, namely, projective measurements. Here we prove that entanglement, one-way steering, two-way steering, and nonlocality are genuinely different considering general measurements, i.e., single round positive-operator-valued measures. Finally, we show that the use of sequences of measurements is relevant for steering tests, as they can be used to reveal “hidden steering.”
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Authors (7)
-
Marco Quintino
- Universite de Geneve
-
Tamás Vértesi
- Universite de Geneve
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Daniel Cavalcanti
- ICFO
-
Remigiusz Augusiak
- CFT
-
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Antonio Acín
- Mediterranean Technology Park
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Nicolas Brunner
- Universite de Geneve
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- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1103/PhysRevA.92.032107
- License
- Copyright (2015 American Physical Society)
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
PHYSICAL REVIEW A
no. 92,
pages 1 - 6,
ISSN: 2469-9926 - Language:
- English
- Publication year:
- 2015
- Bibliographic description:
- Quintino M., Vértesi T., Cavalcanti D., Augusiak R., Demianowicz M., Acín A., Brunner N.: Inequivalence of entanglement, steering, and Bell nonlocality for general measurements// PHYSICAL REVIEW A. -Vol. 92, (2015), s.1-6
- DOI:
- Digital Object Identifier (open in new tab) 10.1103/physreva.92.032107
- Verified by:
- Gdańsk University of Technology
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