中关村论坛 422
题目: A self-consistent theory for quantum droplets of atomic gases
时间: 2023年12月01日 10:00
地点: M楼236会议室
报告人: 易俗 研究员

理论物理研究所

报告人简介:

易俗, 理论物理研究所研究员。2002年获得美国佐治亚理工学院博士学位。2002年5月至2006年1月期间先后在美国佐治亚理工学院和莱斯大学从事博士后研究。2005年10月入中科院,2010年获国家杰出青年科学基金资助。主要从事超冷原子分子物理、量子模拟与量子精密测量等方向的理论研究,共发表SCI学术论文80余篇。

报告摘要:

The recent experimental realization of quantum droplets in both dipolar gases and Bose mixtures is one of the major developments in ultracold atomic physics. Because these droplets emerge in the mean-field collapse regime with sufficiently large attractive inter-atomic interactions, they may represent a new state of matter in dilute atomic gases. A widely accepted theory for the droplet states is the extended Gross-Pitaevskii equation, which incorporates quantum fluctuation through Lee-Huang-Yang correction. In this talk, I will present our results for the properties of the droplet states in various systems. We tackle the problem using the Gaussian-state theory which treats the quantum fluctuation in a self-consistent manner. We show that in addition to two new macroscopic squeezed states, we also find easily accessible criteria for the stabilization mechanism and the quantum state of the droplets.

邀请人:陈 澍(8264 9553)

联系人:胡 颖(8264 9361)