量子光学学报, 2015, 21 (2): 113, 网络出版: 2015-05-26
自旋波波长对量子存储寿命的影响研究
The Investigation of Relationship between Quantum Storage Lifetime and Spin-wave Length
摘要
利用电磁感应透明效应的动力学过程我们在87Rb冷原子系综中实验实现光学信号的存储和释放。通过改变信号光和耦合光的角度实现了自旋波波长的变化。在此基础上我们研究了存储寿命与自旋波波长的关系,结果表明,光存储寿命随自旋波波长(角度)的增加(减小)而增加,当自旋波波长大于2.2 mm(信号光和耦合光的角度小于0.02度)时,存储寿命可达到2.4 ms。
Abstract
With the electromagnetically induced transparency (EIT) dynamics, we realized the storage and release of optical signals in 87Rb cold atoms. We realized the change of Spin-wave length when varing the angle between signal and coupling light. Based on this, we studied the relationship between the storage lifetime and the Spin-wave length. Experimental results showed that the storage lifetime increases (decreases) with the length of Spin-wave (angle). When the spin-wave length exceeds 2.2 mm (the angle between signal and coupling light less than 0.02 degree),the storage lifetime can reach 2.4 ms.
徐忠孝, 陈力荣, 李萍, 温亚飞, 王海. 自旋波波长对量子存储寿命的影响研究[J]. 量子光学学报, 2015, 21(2): 113. XU Zhong-xiao, CHEN Li-rong, LI Ping, WEN Ya-fei, WANG Hai. The Investigation of Relationship between Quantum Storage Lifetime and Spin-wave Length[J]. Acta Sinica Quantum Optica, 2015, 21(2): 113.