摘要
本文研究利用沉默再生效回声(ROSE)技术实现光量子态存储的效率。利用自然非均匀展宽的二能级原子系综,不需应用任何外部的电场或磁场进行调控。在均匀光谱分布下,我们对吸收过程和读取过程进行分析,得出量子的存储效率。发现对于光子向前读取过程,存储效率的最大值能达到54%;而当光深度达到无穷大时,向后的读取效率可达到100%。我们给出了详细的理论推导过程。
We analyzd the quantum memory effi The memory used the natural inhomogeneous ciency for light by using revival of silenced echo （ROSE）. broadening ensemble of two-level atoms, without using any external electric or magnetic field to control. We analyzed the absorption and revival under the uniform distribution of spectral, and obtained the memory efficiency. We found that the maximum efficiency can reach 54% for photons in the forward direction; for the backward direction, the efficiency can reach 100% for infinite optical depth. The detailed theoretical derivation is presented in this paper.
出处
《量子光学学报》
CSCD
北大核心
2014年第3期208-213,共6页
Journal of Quantum Optics
基金
国家自然科学基金
浙江省自然科学基金(LY12A05001)
浙江省教育厅基(Y201120838)
关键词
光量子态存储
ROSE技术
均匀光谱分布
存储效率
Quantum memory
Revival of silenced echo
uniform distribution of spectral
memory effieiency
