Xinyu Luo, Kuiyi Gao, L. Deng, E. W. Hagley, Ruquan Wang
We present experimental evidence supporting the postulation that the secondary effects of light-assisted collisions are the main reason that the superradiant light scattering efficiency in condensates is asymmetric with respect to the sign of the pump-laser detuning. Contrary to the recent experimental study, however, we observe severe and comparable heating with all three pump-laser polarizations. We also perform two-color, double-pulse measurements to directly study the degradation of condensate coherence and the resulting impact on the superradiant scattering efficiency.
View original:
http://arxiv.org/abs/1208.2664
No comments:
Post a Comment