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arXiv quant-ph/0405138quant-ph
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通过相互作用产生光子数纠缠孤子对

Generation of photon-number entangled soliton pairs through interactions

R. -K. Lee, Y. Lai, B. A. Malomed

摘要:

提出了两种利用光纤中孤子间的连续相互作用(而不是碰撞)产生宏观(多光子)连续变量纠缠态的新方案。首先,考虑了两个时间分离的单分量时间孤子的量子涨落。当孤子之间有一个合适的初始间距时,在传播一定距离后,光子数起伏之间可以实现几乎完美的相关。在具有两个偏振分量的矢量孤子对中也可以实现光子数相关。在后一种情况下,光子数纠缠的脉冲可以很容易地分离的偏振分束器。这些结果提供了新的可能性,产生纠缠源的量子通信和计算。

英文摘要:

Two new simple schemes for generating macroscopic (many-photon) continuous-variable entangled states by means of continuous interactions (rather than collisions) between solitons in optical fibers are proposed. First, quantum fluctuations around two time-separated single-component temporal solitons are considered. Almost perfect correlation between the photon-number fluctuations can be achieved after propagating a certain distance, with a suitable initial separation between the solitons. The photon-number correlation can also be achieved in a pair of vectorial solitons with two polarization components. In the latter case, the photon-number-entangled pulses can be easily separated by a polarization beam splitter. These results offer novel possibilities to produce entangled sources for quantum communication and computation.

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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