Modulational Instability of Dipolar Bose-Einstein Condensates in Optical Lattices with Three-Body Interactions

被引:0
作者
漆伟 [1 ]
李子豪 [1 ]
梁兆新 [2 ]
机构
[1] Department of Applied Physics, School of Arts and Sciences, Shaanxi University of Science and Technology
[2] Department of Physics, Zhejiang Normal University
基金
中国国家自然科学基金;
关键词
TBI; Modulational Instability of Dipolar Bose-Einstein Condensates in Optical Lattices with Three-Body Interactions; BEC;
D O I
暂无
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Motivated by the recent experiment [Nature 530(2016) 194] in which a stable droplet in a dipolar quantum gas has been created by the interaction-induced instability, we focus on the modulation instability of an optically-trapped dipolar Bose-Einstein condensate with three-body interaction. Within the mean-field level, we analytically solve the discrete cubic-quintic Gross-Pitaevskii equation with dipole-dipole interaction loaded into a deep optical lattice and show how combined effects of the three-body interaction and dipole-dipole interaction on the condition of modulational instability. Our results show that the interplay of the three-body interaction and dipole-dipole interaction can dramatically change the modulation instability condition compared with the ordinary Gross-Pitaevskii equation. We believe that the predicted results in this work can be useful for the future possible experiment of loading a Bose-Einstein condensate of164Dy atoms with strong magnetic dipole-dipole interaction into an optical lattice.
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页码:11 / 14
页数:4
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