Phys. Rev. A 64, 054302 (2001) [4 pages]

Entanglement in a two-identical-particle system

Abstract

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Y. S. Li^1,2, B. Zeng^1,2, X. S. Liu³, and G. L. Long^1,2
¹Department of Physics, Tsinghua University, Beijing 100084, China
²Key Laboratory For Quantum Information and Measurements, Beijing 100084, China
³Department of Physics, Shandong Normal University, Jinan 250014, China

Received 20 April 2001; published 15 October 2001

The definition of entanglement in identical-particle system is introduced. The separability criterion in two-identical-particle system is given. The physical meaning of the definition is analyzed. Applications to two-boson and two-fermion systems are made. It is found that some different entanglement and correlation phenomena in identical-boson systems exist, and they may have applications in the field of quantum information.

URL:

http://link.aps.org/doi/10.1103/PhysRevA.64.054302

DOI:

10.1103/PhysRevA.64.054302

PACS:

03.67.-a, 03.65.Ta, 89.70.+c

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Phys. Rev. A 64, 054302 (2001) [4 pages]

Entanglement in a two-identical-particle system