Many-body tunneling dynamics of Bose-Einstein condensates and vortex states in two spatial dimensions

被引:33
作者
Beinke, Raphael [1 ]
Klaiman, Shachar [1 ]
Cederbaum, Lorenz S. [1 ]
Streltsov, Alexej I. [1 ]
Alon, Ofir E. [2 ]
机构
[1] Heidelberg Univ, Phys Chem Inst, Theoret Chem, D-69120 Heidelberg, Germany
[2] Univ Haifa, Dept Phys, IL-36006 Tivon, Israel
来源
PHYSICAL REVIEW A | 2015年 / 92卷 / 04期
基金
以色列科学基金会;
关键词
NOBEL LECTURE; GAS; FRAGMENTATION; ATOMS;
D O I
10.1103/PhysRevA.92.043627
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In this work, we study the out-of-equilibrium many-body tunneling dynamics of a Bose-Einstein condensate in a two-dimensional radial double well. We investigate the impact of interparticle repulsion and compare the influence of angular momentum on the many-body tunneling dynamics. Accurate many-body dynamics are obtained by solving the full many-body Schrodinger equation. We demonstrate that macroscopic vortex states of definite total angular momentum indeed tunnel and that, even in the regime of weak repulsions, a many-body treatment is necessary to capture the correct tunneling dynamics. As a general rule, many-body effects set in at weaker interactions when the tunneling system carries angular momentum.
引用
收藏
页数:10
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