Generation of photon-number-entangled soliton pairs through interactions
Generation of photon-number-entangled soliton pairs through interactions
复制标题
通过相互作用生成光子数纠缠孤子对
DOI：
10.1103/physreva.71.013816
复制
发表时间：
2004
影响因子：
2.9
通讯作者：
B. Malomed
中科院分区：
文献类型：
--
作者：
R. Lee;Y. Lai;B. Malomed
提出了两种简单的方案，通过光纤中孤子之间的连续相互作用（而不是碰撞）来生成宏观（多光子）连续变量纠缠态。首先，考虑两个时间分离的单分量时间孤子周围的量子涨落。在经过一定距离后，通过孤子之间适当的初始间隔，可以实现光子数涨落之间几乎完美的相关性。光子数相关性也可以在具有两个偏振分量的一对矢量孤子中实现。在后一种情况下，光子数纠缠脉冲可以很容易地通过偏振分束器分离。这些结果为产生用于量子通信和计算的纠缠源提供了可能性。
Two 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 passing 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 possibilities to produce entangled sources for quantum communication and computation.