文献类型：期刊文献

英文题名：Quantum simulation of the Unruh effect with a Rydberg-dressed Bose-Einstein condensate

作者：Sheng, Tianze[1,3];Qian, Jun[2];Li, Xiaolin[2];Niu, Yueping[2];Gong, Shangqing[2]

机构：[1]Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, Key Lab Quantum Opt, Shanghai 201800, Peoples R China;[2]East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China;[3]Univ Chinese Acad Sci, Beijing 100049, Peoples R China

年份：2021

卷号：103

期号：1

外文期刊名：PHYSICAL REVIEW A

收录：;EI(收录号：20210209764833);WOS:【SCI-EXPANDED(收录号:WOS:000604958800003)】；

基金：This work was supported by the National Natural Science Foundation of China (Grants No. 11774362, No. 61835013, No. 11774089, No. 11974109, and No. 12034007), and National Key Research and Development Program of China (Grant No. 2016YFA0301504).

语种：英文

外文关键词：Atom lasers - Quantum chemistry - Statistical mechanics - Bose-Einstein condensation

摘要：We propose a scheme for investigating the Unruh effect, i.e., the thermal radiation observed by uniformly accelerating observers or detectors, with ultracold atoms coupled by an off-resonant laser. We find that periodic modulation of the Rydberg-dressing interaction between atoms plays a significant role in the manipulation of a thermal bath in a uniformly accelerating reference frame. Our calculations show that the resulting Unruh temperature strongly depends on the driving frequency of the modulated Rydberg-dressing potential and the soft-core nature of the dressing interaction, i.e., the soft-core radius and height. These results reveal the potential applications of ultracold atoms with controllable long-range interaction in a wide variety of analog gravity phenomena.