量子光学学报, 2011, 17 (3): 193, 网络出版: 2011-07-25
连续变量二类倍频过程中的量子信息操控
Manipulations of Quantum Information by a Type ⅡSecond Harmonic Generation Process
连续变量 倍频过程 量子场 量子信息操控 continuous variable second harmonic generation quantum fields manipulation of quantum information
摘要
从Ⅱ类匹配倍频过程的半经典运动方程出发，讨论了阈值以下三共振Ⅱ类倍频过程中两个非简并基频光模为振幅压缩光场时产生的谐振倍频光场的量子起伏特性。通过对输入基频光场的振幅压缩调节来实现对倍频光场压缩度的控制。结果表明在这个系统中基频光场的量子起伏直接控制着倍频光场的量子起伏。这种以非线性过程实现的量子信息调控在量子通讯及量子网络中具有重要的意义。
Abstract
We have studied theoretically quantum noise fluctuation of type Ⅱsecond harmonic generation (SHG) process. The dependence of generated quantum fields by the input quantized fields is calculated. The results indicate that the SHG optical cavity can realize manipulation of quantum fluctuations when the pump beams are quantum fields. This manipulation of quantum fluctuations is essential in quantum information processing and quantum networking.
翟淑琴, 郭娟. 连续变量二类倍频过程中的量子信息操控[J]. 量子光学学报, 2011, 17(3): 193. ZHAI Shu-qin, GUO Juan. Manipulations of Quantum Information by a Type ⅡSecond Harmonic Generation Process[J]. Acta Sinica Quantum Optica, 2011, 17(3): 193.
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