【作者】 朱洪波； 陈林； 杨伯君；

【Author】 ZHU Hong-bo, CHEN Lin, YANG Bo-jun (Science School, Beijing University of Posts and Telecommunications, Beijing 100876, China)

【机构】 北京邮电大学理学院；

【摘要】 根据光孤子的特点定义了孤子中光子的产生和湮灭算符,进而得到2个正交相振幅算符,发现如果利用与时间有关的Hartree近似得到的量子非线性Schroinger方程的解来描述光孤子在光纤中的行为,随着传输距离的增加,正交相振幅的方差呈现周期性的变化,并在一段区域内低于量子极限,即形成光孤子的压缩态．更多还原

【Abstract】 The annihilation and creation operators of photons in solitons are defined according to the features of solitons in this paper. And then the operators of amplitudes for the mode’s two quadrature phases are given. Using the time-dependent Hartree approximation, bound states can be constructed to satisfy the quantum nonlinear Schrodinger equation. Describing the propagation of solitons in fibers by means of soliton states which are superimposed by the approximation bound states, we find solitons will present squeezed states periodically.更多还原