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arXiv quant-ph/0511220quant-ph
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双通道连续变量隐形传态实现单光子偏振态的转移

Transfer of single photon polarization states by two-channel continuous variable teleportation

Toshiki Ide, Holger F. Hofmann

摘要:

两个正交单光子偏振态的叠加通常用作光学量子比特。如果通过连续变量量子隐形传态发送这样的量子比特,则由于不完美纠缠引起的量子比特状态的修改导致输出状态的平均光子数增加。这种效应可以解释为单光子输入的一次偶然的量子克隆。分析了单光子隐形传态的输出统计特性,并从偏振量子比特方程出发,推导出了传输和克隆量子比特的概率。

英文摘要:

Superpositions of two orthogonal single-photon polarization states are commonly used as optical qubits. If such qubits are sent by continuous variable quantum teleportation, the modifications of the qubit states due to imperfect entanglement cause an increase in the average photon number of the output state. This effect can be interpreted as an accidental quantum cloning of the single photon input. We analyze the output statistics of the single photon teleportation and derive the transfer and cloning fidelities from the equations of the polarization qubit.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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