陈洋洋

个人信息:Personal Information

副教授

硕士生导师

教师拼音名称:chenyangyang

电子邮箱:

入职时间:2020-09-07

所在单位:现代物理研究所

学历:博士研究生毕业

性别:男

学位:理学博士学位

职称:副教授

学科:凝聚态物理
原子与分子物理
理论物理

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Quantum criticality and the Tomonaga-Luttinger liquid in one-dimensional Bose gases

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DOI码:10.1103/PhysRevLett.119.165701

发表刊物:Physical Review Letters

摘要:We experimentally investigate the quantum criticality and Tomonaga-Luttinger liquid (TLL) behavior within one-dimensional (1D) ultracold atomic gases. Based on the measured density profiles at different temperatures, the universal scaling laws of thermodynamic quantities are observed. The quantum critical regime and the relevant crossover temperatures are determined through the double-peak structure of the specific heat. In the TLL regime, we obtain the Luttinger parameter by probing sound propagation. Furthermore, a characteristic power-law behavior emerges in the measured momentum distributions of the 1D ultracold gas, confirming the existence of the TLL.

论文类型:期刊论文

学科门类:理学

一级学科:物理学

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收录刊物:SCI

发布期刊链接:https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.119.165701