| Teleportation of a Coherent Superposition State Via a nonmaximally Entangled Coherent Xhannel |
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| 作者姓名： | ZHENF Yi-xhuang GU Yong-jian GUO Guang-can |
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| 作者单位： | ZHENF Yi-xhuang（Department of Physics, Wenzhou Normal College, Wenzhou 325027, P. R. China）
GU Yong-jian（Laboratory of Quantum Communication and Quantum Computation, University of Science and Technology of Xhina, Hefei 230026, P. R. China）
GUO Guang-can（Laboratory of Quantum Communication and Quantum Computation, University of Science and Technology of Xhina, Hefei 230026, P. R. China） |
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| 摘 要： | We investigate the problemm of teleportation of a superposition coherent state with nonmaximally entangled coherent channel. Two strategies are considered to complete the task. The first one uses entanglement concentration to purify the channel to a maximally entangled one. The second one teleports the state through the nonmaximally entangled coherent channel directly. We find that the probabilities of successful teleportations for the two strategies are depend on the amplitudes of the coherent states and the mean fidelity of teleportation using the first strategy is always less than that of the second strategy.
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Teleportation of a Coherent Superposition State Via a nonmaximally Entangled Coherent Xhannel |
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| ZHENF Yi-xhuang,GU Yong-jian,GUO Guang-can.Teleportation of a Coherent Superposition State Via a nonmaximally Entangled Coherent Xhannel[J].Acta Sinica Quantum Optica,2002,8(Z1):19-20. |
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| Authors: | ZHENF Yi-xhuang GU Yong-jian GUO Guang-can |
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| Abstract: | We investigate the problemm of teleportation of a superposition coherent state with nonmaximally entangled coherent channel. Two strategies are considered to complete the task. The first one uses entanglement concentration to purify the channel to a maximally entangled one. The second one teleports the state through the nonmaximally entangled coherent channel directly. We find that the probabilities of successful teleportations for the two strategies are depend on the amplitudes of the coherent states and the mean fidelity of teleportation using the first strategy is always less than that of the second strategy. |
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