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Proceedings Paper

Calculating the Gaussian relative entropy of entanglement
Author(s): Li-zhen Jiang; Liang-neng Wu; Yun Zhou
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Paper Abstract

We in this paper calculate the relative entropy between the bipartite Gaussian states. By evaluating the minimization of the relative entropy of an entangled Gaussian state with respect to the separable Gaussian states, we obtain the Gaussian relative entropy of entanglement of the state. The bipartite operations of squeezing and rotations on the separable states are also addressed. We prove that for bipartite symmetric Gaussian states the separable states we sought will be symmetric Gaussian states, and we get quite simple expressions of Gaussian relative entropy of entanglement for such states.

Paper Details

Date Published: 11 January 2005
PDF: 8 pages
Proc. SPIE 5631, Quantum Optics and Applications in Computing and Communications II, (11 January 2005); doi: 10.1117/12.575432
Show Author Affiliations
Li-zhen Jiang, China Institute of Metrology (China)
Liang-neng Wu, China Institute of Metrology (China)
Yun Zhou, China Institute of Metrology (China)


Published in SPIE Proceedings Vol. 5631:
Quantum Optics and Applications in Computing and Communications II
Guang-Can Guo; Hoi-Kwong Lo; Masahide Sasaki; Songhao Liu, Editor(s)

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