量子电子学报, 2008, 25 (5): 0598, 网络出版: 2010-06-07   

非简并k光子J-C模型中光场的量子统计特性

Quantum statistical properties of entangled light fields in nondegenerate k-photon J-C model
作者单位
曲阜师范大学物理工程学院,山东 曲阜 273165
摘要
考虑双模纠缠相干光场,将其中一束光注入一个存在二能级原子的腔中并与它们发生非共振k光子相互作用,总系统在腔量子电动力学演化过程中,对原子作选择性的测量,通过操纵相互作用时间以及选择适当的光场参量,控制未参加相互作用光场的量子统计性质,在一定条件下可产生反聚束、压缩态等非经典光场,并改变其非经典效应的强弱。这样,利用相干光场之间的纠缠关联,并通过非共振多光子腔QED技术,有效地实现了无直接量子测量的控制和改变相干光场的非经典性质的目的。
Abstract
Considering two-mode entangled coherent light fields,one mode of the fields was poured into the cavity with a two-level atom and interacted with it by k photons non-resonantly. During the course of cavity-QED evolution of the total system,a selective measurement of the atom was carried out. Through manipulating the evolution time and the parameter of the coherent field which interacted with atom,in certain conditions,the non-classical light such as anti-bunching and squeezing state can be generated,and the strength of non-classical property can be changed. In this way by using the technique for cavity-QED with k photons non-resonantly and the entangled correlation between the coherent light fields,controlor change the non-classical properties of coherent light fields remotely without direct measurement was implemented effectively.

杜秀梅, 夏云杰, 周原. 非简并k光子J-C模型中光场的量子统计特性[J]. 量子电子学报, 2008, 25(5): 0598. DU Xiu-mei, XIA Yun-jie, ZHOU Yuan. Quantum statistical properties of entangled light fields in nondegenerate k-photon J-C model[J]. Chinese Journal of Quantum Electronics, 2008, 25(5): 0598.

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