Generation of a Non-Classical Correlated Photon Pair via Spontaneous Four-Wave Mixing in a Cold Atomic Ensemble  

作　　者：陆小松 陈群峰 史保森 郭光灿 

机构地区：[1]Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026

出　　处：《Chinese Physics Letters》2009年第6期124-126,共3页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10674126 and 10874171, the National Basic Research Program of China under Grant Nos 2006CB921900 and 2009CB921901, the Knowledge Innovation Project of Chinese Academy of Sciences, and the New Century Excellent Talent Project （NCET） of the Ministry of Education of China.

摘　　要：Counter propagated write and read lasers can be used to generate non-classical correlated photon pairs in an atomic ensemble. We experimentally investigate how the detuning of the write laser affects the non-classical correlation function between the Stokes photon and the anti-Stokes photon, which are generated via a spontaneous four-wave mixing process using an off-axis configuration in a cold 85 Rb atomic ensemble. The change of the time-resolved second-order correlated function between the Stokes and anti-Stokes photons is presented. The experimental result suggests that a suitable choice of detuning should be considered in such an experiment.Counter propagated write and read lasers can be used to generate non-classical correlated photon pairs in an atomic ensemble. We experimentally investigate how the detuning of the write laser affects the non-classical correlation function between the Stokes photon and the anti-Stokes photon, which are generated via a spontaneous four-wave mixing process using an off-axis configuration in a cold 85 Rb atomic ensemble. The change of the time-resolved second-order correlated function between the Stokes and anti-Stokes photons is presented. The experimental result suggests that a suitable choice of detuning should be considered in such an experiment.

关 键 词：gamma-ray bursts GAMMA-RAYS RELATIVITY 

分 类 号：O431.2[机械工程—光学工程] TN929.11[理学—光学]