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

页数：10

共 55 条

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