期刊
SCIPOST PHYSICS CORE
卷 5, 期 1, 页码 -出版社
SCIPOST FOUNDATION
DOI: 10.21468/SciPostPhysCore.5.1.015
关键词
-
This study investigates the effects of spatial curvature on an atomic Bose-Einstein condensate confined in an elliptical waveguide. The results show that the system undergoes a quantum phase transition from a two-peak configuration to a one-peak configuration at a critical attractive interaction strength. This phase transition also leads to a significant reduction in the superfluid fraction, which goes to zero for a sufficiently attractive Bose-Bose interaction.
We investigate the effects of spatial curvature for an atomic Bose-Einstein condensate confined in an elliptical waveguide. The system is well described by an effective 1D Gross-Pitaevskii equation with a quantum-curvature potential, which has the shape of a double-well but crucially depends on the eccentricity of the ellipse. The ground state of the system displays a quantum phase transition from a two-peak configuration to a one-peak configuration at a critical attractive interaction strength. In correspondence of this phase transition the superfluid fraction strongly reduces and goes to zero for a sufficiently attractive Bose-Bose interaction.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据