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arXiv 0811.0161quant-ph
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光参量放大器中压缩真空场的相敏操纵

Phase-sensitive Manipulations of Squeezed Vacuum Field in an Optical Parametric Amplifier inside an Optical Cavity

Jing Zhang, Chenguang Ye, Feng Gao, Min Xiao

摘要:

压缩真空场作为信号光注入光学谐振腔内的相敏光参量放大器(OPA),可以实现光场的放大或去放大。对于OPA,反射的量子化信号光场的光谱特性由注入的压缩真空光场与泵浦光场之间的相对相位控制。实验结果证明了OPA在量子机制下的相干现象,并显示了用于量子信息处理的量子涨落的相敏操纵。

英文摘要:

Squeezed vacuum field can be amplified or deamplified when it is injected, as the signal beam, into a phase-sensitive optical parametric amplifier (OPA) inside an optical cavity. The spectral features of the reflected quantized signal field are controlled by the relative phase between the injected squeezed vacuum field and the pump field for the OPA. The experimental results demonstrate coherent phenomena of OPA in the quantum regime, and show phase-sensitive manipulations of quantum fluctuations for quantum information processing.

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