光纤激光器中束缚孤子对和孤子串的量子关联
Quantum correlations in bound-soliton pairs and trains in fiber lasers
摘要：
基于线性化的量子涨落方程，数值计算了由复Ginzburg-Landau方程（CGLE）模拟的束缚孤子对和束缚孤子列（列）中的量子关联.我们发现强关联的束缚孤子，即使系统是耗散的。稳定束缚孤子对的光子数涨落与孤子串之间存在一定程度的相关性，并在通过一定距离后达到饱和。用CGLE中非保守项的作用解释了光子数关联的饱和。光子数相关束缚孤子串为量子通信和计算提供了产生多体纠缠源的新可能性。
英文摘要：
Quantum correlations in pairs and arrays (trains) of bound solitons modeled by the complex Ginzburg-Landau equation (CGLE) are calculated numerically, on the basis of linearized equations for quantum fluctuations. We find strong correlations between the bound solitons, even though the system is dissipative. Some degree of the correlation between the photon-number fluctuations of stable bound soliton pairs and trains is attained and saturates after passing a certain distance. The saturation of the photon-number correlations is explained by the action of non- conservative terms in the CGLE. Photon-number-correlated bound soliton trains offer novel possibilities to produce multipartite entangled sources for quantum communication and computation.
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