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Generation of Cluster-Type Entangled Coherent States via Cross-Kerr Nonlinearity |
| WANG Wen-Feng1;SUN Xin-Yuan1;LUO Xiao-Bing2 |
| 1Department of Physics, Jinggangshan University, Ji'an 3430092Institute of Physics, Chinese Academy of Sciences, Beijing 100080 |
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| Cite this article: |
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WANG Wen-Feng, SUN Xin-Yuan, LUO Xiao-Bing 2008 Chin. Phys. Lett. 25 839-842 |
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Abstract We propose an optical scheme for the generation of the cluster-type entangled coherent states in free travelling optical fields via cross-Kerr nonlinearity. The required resources for the generation are coherent state source, beam splitters, photodetectors, and Kerr media. We also discuss the
implementation of the Hadamard gate operation for coherent states and
the homodyne detection.
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| Keywords:
03.67.Mn
03.65.Ud
42.50.Dv
42.50.-p
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Received: 23 October 2007
Published: 27 February 2008
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| PACS: |
03.67.Mn
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(Entanglement measures, witnesses, and other characterizations)
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03.65.Ud
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(Entanglement and quantum nonlocality)
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42.50.Dv
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(Quantum state engineering and measurements)
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42.50.-p
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(Quantum optics)
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