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Simple Algorithm for Deterministic Entanglement Concentration |
JIN Rui-Bo1,2;CHEN Li-Bing2;WANG Fa-Qiang1;LU Yi-Qun1;LIU Song-Hao1 |
1Laboratory of Photonic Information Technology, School for Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 5100062Department of Photoelectron and Physics, Foshan University, Foshan 528000 |
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Cite this article: |
JIN Rui-Bo, CHEN Li-Bing, WANG Fa-Qiang et al 2007 Chin. Phys. Lett. 24 1799-1801 |
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Abstract We first present the general solution and the simplest special solution of the doubly stochastic matrix used in deterministic entanglement concentration. Then, we give a better scheme to realize deterministic entanglement concentration. Under this scheme, the concentration is realized, and more importantly, two partially entangled pairs concentrate to four-particle Greenberger--Horne--Zeilinger (GHZ) states with a certain probability.
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Keywords:
03.67.Mn
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Received: 08 January 2007
Published: 25 June 2007
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PACS: |
03.67.Mn
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(Entanglement measures, witnesses, and other characterizations)
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