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Abstract
We provide operational definition of symmetry of entanglement: An entangled state contains symmetric entanglement if its subsystems can be exchanged (swapped) by means of local operations and classical communication. We show that in general states have asymmetric entanglement. This allows to construct nonsymmetric measure of entanglement, and a parameter that reports asymmetry of entanglement contents of quantum state. We propose asymptotic measure of asymmetry of entanglement, and show that states for which it is nonzero, contain necessarily bound entanglement.
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- Copyright (2010 Rinton Press)
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
QUANTUM INFORMATION & COMPUTATION
no. 10,
pages 901 - 910,
ISSN: 1533-7146 - Language:
- English
- Publication year:
- 2010
- Bibliographic description:
- Horodecki K., Horodecki M., Horodecki P.: Are quantum correlations symmetric?// QUANTUM INFORMATION & COMPUTATION. -Vol. 10, nr. No. 11&12 (2010), s.901-910
- Verified by:
- Gdańsk University of Technology
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