To detect the looped Bloch bands of Bose-Einstein condensates in optical lattices

被引：11

作者：

Choi, DI

Wu, B

机构：

[1] Univ Space Res Assoc, Seabrook, MD 20706 USA

[2] NASA, Goddard Space Flight Ctr, High Energy Astrophys Lab, Greenbelt, MD 20771 USA

[3] Univ Texas, Dept Phys, Austin, TX 78712 USA

[4] Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA

来源：

PHYSICS LETTERS A | 2003年 / 318卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/j.physleta.2003.09.066

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A loop structure was predicted to exist in the Bloch bands of Bose-Einstein condensates in optical lattices recently in [Phys. Rev. A 61 (2000) 023402]. We discuss how to detect experimentally the looped band with an accelerating optical lattice through extensive and realistic numerical simulations. We find that the loop can be detected through observing either nonlinear Landau-Zener tunneling or destruction of Bloch oscillations. (C) 2003 Elsevier B.V. All rights reserved.

引用

收藏

页码：558 / 563

页数：6

相关论文

共 22 条

[1] Macroscopic quantum interference from atomic tunnel arrays [J].

Anderson, BP ;

Kasevich, MA .

SCIENCE, 1998, 282 (5394) :1686-1689

[2] Bloch oscillations of atoms in an optical potential [J].

BenDahan, M ;

Peik, E ;

Reichel, J ;

Castin, Y ;

Salomon, C .

PHYSICAL REVIEW LETTERS, 1996, 76 (24) :4508-4511

[3] Superfluid and dissipative dynamics of a Bose-Einstein condensate in a periodic optical potential [J].

Burger, S ;

Cataliotti, FS ;

Fort, C ;

Minardi, F ;

Inguscio, M ;

Chiofalo, ML ;

Tosi, MP .

PHYSICAL REVIEW LETTERS, 2001, 86 (20) :4447-4450

[4] Bose-Einstein condensates in an optical lattice [J].

Choi, DI ;

Niu, Q .

PHYSICAL REVIEW LETTERS, 1999, 82 (10) :2022-2025

[5]

CRISTIANI M, 2002, PHYS REV A, V66, DOI UNSP 043409

[6] Loop structure of the lowest Bloch band for a Bose-Einstein condensate [J].

Diakonov, D ;

Jensen, LM ;

Pethick, CJ ;

Smith, H .

PHYSICAL REVIEW A, 2002, 66 (01) :136041-136044

[7] Quantum tweezer for atoms [J].

Diener, RB ;

Wu, B ;

Raizen, MG ;

Niu, Q .

PHYSICAL REVIEW LETTERS, 2002, 89 (07)

[8] Realization of Bose-Einstein condensates in lower dimensions -: art. no. 130402 [J].

Görlitz, A ;

Vogels, JM ;

Leanhardt, AE ;

Raman, C ;

Gustavson, TL ;

Abo-Shaeer, JR ;

Chikkatur, AP ;

Gupta, S ;

Inouye, S ;

Rosenband, T ;

Ketterle, W .

PHYSICAL REVIEW LETTERS, 2001, 87 (13) :130402/1-130402/4

[9] Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms [J].

Greiner, M ;

Mandel, O ;

Esslinger, T ;

Hänsch, TW ;

Bloch, I .

NATURE, 2002, 415 (6867) :39-44

[10] Cold bosonic atoms in optical lattices [J].

Jaksch, D ;

Bruder, C ;

Cirac, JI ;

Gardiner, CW ;

Zoller, P .

PHYSICAL REVIEW LETTERS, 1998, 81 (15) :3108-3111