科研之友
微信
新浪微博
Facebook
分享链接
摘要
We consider how to measure collective spin states of an atomic ensemble based on the multi-pass approaches for quantum interface between light and atoms. We find that a scheme with two passages of a light pulse through the atomic ensemble is efficient to implement the homodyne tomography of the spin state. Thereby, we propose to utilize optical pulses as a phase shifter that rotates the quadrature of the spins. This method substantially simplifies the geometry of experimental schemes.
- 出版日期2011-11
