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Exploration of nonlocalities in ensembles consisting of bipartite quantum states

Source: Phys. Rev. A 81, 014303 (2010); doi:10.1103/PhysRevA.81.014303

Published 25 January 2010

PACS
  • 03.67.Mn
    Entanglement measures, witnesses, and other characterizations (quantum information)
  • 03.65.Ud
    Entanglement and quantum nonlocality
  • 03.67.Hk
    Quantum communication
  • YEAR: 2010
PUBLICATION DATA
Publisher:
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Ming-Yong Ye,1,2 Yan-Kui Bai,3 Xiu-Min Lin,2 and Z. D. Wang1
1Department of Physics and Center of Theoretical and Computational Physics, University of Hong Kong, Pokfulam Road, Hong Kong, People's Republic of China
2School of Physics and Optoelectronics Technology, Fujian Normal University, Fuzhou 350007, People's Republic of China
3College of Physical Science and Information Engineering and Hebei Advance Thin Films Laboratory, Hebei Normal University, Shijiazhuang, Hebei 050016, People's Republic of China
It is revealed that ensembles consisting of multipartite quantum states can exhibit different kinds of nonlocalities. An operational measure is introduced to quantify nonlocalities in ensembles consisting of bipartite quantum states. Various upper and lower bounds for the measure are estimated and the exact values for ensembles consisting of mutually orthogonal maximally entangled bipartite states are evaluated. ©2010 The American Physical Society
History: Received 4 February 2009; published 25 January 2010
Permalink: http://link.aps.org/abstract/PRA/v81/e014303
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