Generating periodic interference in Bose-Einstein condensates

被引：1

作者：

Ji, Shen-Tong ^{[1
]}

Wang, Yuan-Sheng ^{[1
]}

Luo, Yue-E ^{[1
]}

Liu, Xue-Shen ^{[2
]}

机构：

[1] Guizhou Educ Univ, Sch Phys & Elect Sci, Guiyang 550018, Peoples R China

[2] Jilin Univ, Inst Atom & Mol Phys, Changchun 130012, Peoples R China

来源：

CHINESE PHYSICS B | 2016年 / 25卷 / 09期

基金：

中国国家自然科学基金;

关键词：

interference pattern; dark solitons; Bose-Einstein condensates; SOLITONS; EQUATION; DYNAMICS;

D O I：

10.1088/1674-1056/25/9/090303

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The interference between two condensates with repulsive interaction is investigated numerically by solving the one-dimensional time-dependent Gross-Pitaevskii equation. The periodic interference pattern forms in two condensates, which are prepared in a double-well potential consisting of two truncated harmonic wells centered at different positions. Dark solitons are observed when two condensates overlap. Due to the existence of atom-atom interactions, atoms are transferred among the ground state and the excited states, which coincides with the condensate energy change.

引用

页数：5

共 25 条

[1] Nonlinear Schrodinger equation for a superfluid Bose gas from weak coupling to unitarity: Study of vortices [J].

Adhikari, S. K. ;

Salasnich, L. .

PHYSICAL REVIEW A, 2008, 77 (03)

[2] Numerical solution of the Gross-Pitaevskii equation for Bose-Einstein condensation [J].

Bao, WZ ;

Jaksch, D ;

Markowich, PA .

JOURNAL OF COMPUTATIONAL PHYSICS, 2003, 187 (01) :318-342

[3] Atomtronics with holes: Coherent transport of an empty site in a triple-well potential [J].

Benseny, A. ;

Fernandez-Vidal, S. ;

Baguda, J. ;

Corbalan, R. ;

Picon, A. ;

Roso, L. ;

Birkl, G. ;

Mompart, J. .

PHYSICAL REVIEW A, 2010, 82 (01)

[4] Spatiotemporal Hermite-Gaussian solitons of a (3+1)-dimensional partially nonlocal nonlinear Schrodinger equation [J].

Dai, Chao-Qing ;

Wang, Yu ;

Liu, Jiu .

NONLINEAR DYNAMICS, 2016, 84 (03) :1157-1161

[5]

Dai CQ, 2016, NONLINEAR DYNAM, V83, P2453, DOI 10.1007/s11071-015-2493-3

[6]

Dai CQ, 2015, NONLINEAR DYNAM, V80, P715, DOI 10.1007/s11071-015-1900-0

[7] Propagation and breathing of matter-wave-packet trains [J].

Hai, WH ;

Lee, CH ;

Chong, GS .

PHYSICAL REVIEW A, 2004, 70 (05) :053621-1

[8] Tunneling of Bose-Einstein condensate and interference effect in a harmonic trap with a Gaussian energy barrier [J].

Hua Wei ;

Li Bin ;

Liu Xue-Shen .

CHINESE PHYSICS B, 2011, 20 (06)

[9] Matter-wave dark solitons in a double-well potential [J].

Ichihara, Ryoko ;

Danshita, Ippei ;

Nikuni, Tetsuro .

PHYSICAL REVIEW A, 2008, 78 (06)

[10] Generating ring dark solitons in two-component Bose-Einstein condensates [J].

Ji, Shen-Tong ;

Liu, Xue-Shen .

PHYSICS LETTERS A, 2014, 378 (5-6) :524-528

← 1 2 3 →