Home | About Journal | Web Links | E-mail Alerts | RSS RSS Icon | Browse
Previous Article Next Article

Entanglement criteria via concave-function uncertainty relations

Source: Phys. Rev. A 82, 012335 (2010); doi:10.1103/PhysRevA.82.012335

Published 29 July 2010

PACS
  • 03.67.Mn
    Entanglement measures, witnesses, and other characterizations (quantum information)
  • 03.65.Ud
    Entanglement and quantum nonlocality
  • 03.65.Ta
    Foundations of quantum mechanics; measurement theory
  • YEAR: 2010
PUBLICATION DATA
Publisher:
AIP is a member of CrossRef APS
Yichen Huang
Department of Mathematical Sciences and Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China
A general theorem as a necessary condition for the separability of quantum states in both finite and infinite dimensional systems, based on concave-function uncertainty relations, is derived. Two special cases of the general theorem are stronger than two known entanglement criteria based on the Shannon entropic uncertainty relation and the Landau-Pollak uncertainty relation, respectively; other special cases are able to detect entanglement where some famous entanglement criteria fail. ©2010 The American Physical Society
History: Received 4 October 2009; published 29 July 2010
Permalink: http://link.aps.org/abstract/PRA/v82/e012335
ADVERTISEMENT