Modulational Instability of Dipolar Bose-Einstein Condensates in Optical Lattices with Three-Body Interactions
被引:0
作者:
漆伟
论文数: 0引用数: 0
h-index: 0
机构:
Department of Applied Physics, School of Arts and Sciences, Shaanxi University of Science and TechnologyDepartment of Applied Physics, School of Arts and Sciences, Shaanxi University of Science and Technology
漆伟
[1
]
李子豪
论文数: 0引用数: 0
h-index: 0
机构:
Department of Applied Physics, School of Arts and Sciences, Shaanxi University of Science and TechnologyDepartment of Applied Physics, School of Arts and Sciences, Shaanxi University of Science and Technology
李子豪
[1
]
论文数: 引用数:
h-index:
机构:
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
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.