Interference effect of critical ultra-cold atomicBose gases
Interference effect of critical ultra-cold atomicBose gases
复制标题
临界超冷原子玻色气体的干涉效应
DOI：
10.1140/epjp/i2016-16029-3
复制
发表时间：
2016
影响因子：
3.4
通讯作者：
Hongwei Xiong
中科院分区：
文献类型：
--
作者：
Xuguang Yue;Shujuan Liu;Hongwei Xiong
For ultra-cold atomic gases close to the critical temperature, there is a divergent correlation behavior within the critical regime. This divergent correlation behavior is the cornerstone of the universal behavior within the critical regime,e.g.the universal critical exponent for the same class with very different physical systems. It is still quite challenging to observe this divergent correlation behavior in experiments with ultra-cold atomic gases. Here we consider theoretically the interference effect of the critical atomic Bose gas by a Kapitza-Dirac scattering. We find that the Kapitza-Dirac scattering has the merit of enhancing the interference effect in the observation of the correlation behavior. This provides a potential method to study the critical behavior of ultra-cold Bose gases. A simple rule is found by numerical simulations to get the critical exponent and correlation amplitude ratio from the interference fringes after the Kapitza-Dirac scattering.
