期刊
ATOMS
卷 11, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/atoms11070102
关键词
dipolar Bose-Einstein condensates; variational approaches; supersolidity
This paper discusses the effects of quantum fluctuations on dipolar Bose-Einstein condensates (BECs) and introduces variational approaches to approximately determine the phase diagrams for trapped dipolar BECs. Two-dimensional symmetry breaking occurs in the plane perpendicular to the polarisation axis, and approximate expressions for small modulation amplitudes are derived and compared to rigorous numerics.
It has been shown that quantum fluctuations in dipolar Bose-Einstein condensates (BECs) lead to a stabilisation against collapse, thereby providing access to a range of states with different symmetries. In this paper, we discuss variational approaches to approximately determine the phase diagrams for dipolar BECs that are trapped along the dipolar orientation and otherwise infinite in the perpendicular direction (thermodynamic limit). The two-dimensional symmetry breaking occurs in the plane perpendicular to the polarisation axis. We show in detail how to derive approximate expressions that are valid in a region where modulations to an otherwise unmodulated perfect superfluid emerge gradually with a small modulation amplitude and compare the results to rigorous numerics.
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