This paper explores continuous variable entanglement in four-wave mixing when the atomic relaxation time is comparable to and longer than the cavity relaxation time. In this case the atomic memory is included in the f...This paper explores continuous variable entanglement in four-wave mixing when the atomic relaxation time is comparable to and longer than the cavity relaxation time. In this case the atomic memory is included in the field correlations and the entanglement in the output fields can be significantly enhanced. Einstein Podolsky Rosen （EPR） entanglement is achievable even in the bad cavity limit. This shows the EPR entanglement generation without need of good cavity.展开更多
基金supported by the National Natural Science Foundation of China (Grant No. 60778005)
文摘This paper explores continuous variable entanglement in four-wave mixing when the atomic relaxation time is comparable to and longer than the cavity relaxation time. In this case the atomic memory is included in the field correlations and the entanglement in the output fields can be significantly enhanced. Einstein Podolsky Rosen （EPR） entanglement is achievable even in the bad cavity limit. This shows the EPR entanglement generation without need of good cavity.
