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arXiv · 1703.02738

Matter wave interference of dilute Bose gases in the critical regime

Xuguang Yue·Shujuan Liu·Biao Wu·Hongwei Xiong
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Abstract

Ultra-cold atomic gases provide new chance to study the universal critical behavior of phase transition. We study theoretically the matter wave interference for ultra-cold Bose gases in the critical regime. We demonstrate that the interference in the momentum distribution can be used to extract the correlation in the Bose gas. A simple relation between the interference visibility and the correlation length is found and used to interpret the pioneering experiment about the critical behavior of dilute Bose gases [Science {\bf 315}, 1556 (2007)]. Our theory paves the way to experimentally study various types of ultra-cold atomic gases with the means of matter wave interference.

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Xuguang Yue, Shujuan Liu, Biao Wu, Hongwei Xiong. 2017-03-08. Matter wave interference of dilute Bose gases in the critical regime. https://doi.org/10.1088/1674-1056/26/5/050501

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