Josephson-type oscillations of a driven Bose-Einstein condensate in an optical lattice

被引：17

作者：

Chiofalo, ML ^{[1
]}

Tosi, MP

机构：

[1] INFM, I-56126 Pisa, Italy

[2] Scuola Normale Super Pisa, Classe Sci, I-56126 Pisa, Italy

来源：

EUROPHYSICS LETTERS | 2001年 / 56卷 / 03期

关键词：

D O I：

10.1209/epl/i2001-00523-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Coherent transport behaviour has been demonstrated in experiments on atomic Bose-Einstein condensates driven by an external force through a quasi one-dimensional optical lattice. We exploit the Wannier-function representation of band states to elucidate the relationship of such coherent transport with the weak-link Josephson effect and test the observability of multimode behaviour in condensates by numerical solution of the Gross-Pitaevskii equation.

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收藏

页码：326 / 332

页数：7

相关论文

共 21 条

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

Anderson, BP ;

Kasevich, MA .

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

[2]

[Anonymous], 1982, PHYSICS APPL JOSEPHS

[3] Bose-Einstein condensates in spatially periodic potentials [J].

Berg-Sorensen, K ;

Molmer, K .

PHYSICAL REVIEW A, 1998, 58 (02) :1480-1484

[4] Observation of atomic tunneling from an accelerating optical potential [J].

Bharucha, CF ;

Madison, KW ;

Morrow, PR ;

Wilkinson, SR ;

Sundaram, B ;

Raizen, MG .

PHYSICAL REVIEW A, 1997, 55 (02) :R857-R860

[5] 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

[6] Output from Bose condensates in tunnel arrays: the role of mean-field interactions and of transverse confinement [J].

Chiofalo, ML ;

Tosi, MP .

PHYSICS LETTERS A, 2000, 268 (4-6) :406-412

[7] Output coupling of Bose condensates from atomic tunnel arrays: a numerical study [J].

Chiofalo, ML ;

Succi, S ;

Tosi, MP .

PHYSICS LETTERS A, 1999, 260 (1-2) :86-93

[8] Probing the energy bands of a Bose-Einstein condensate in an optical lattice [J].

Chiofalo, ML ;

Succi, S ;

Tosi, MP .

PHYSICAL REVIEW A, 2001, 63 (06) :5

[9] Collective excitations of a periodic Bose condensate in the Wannier representation [J].

Chiofalo, ML ;

Polini, M ;

Tosi, MP .

EUROPEAN PHYSICAL JOURNAL D, 2000, 11 (03) :371-378

[10]

Cornell EA, 1999, P INT SCH PHYS, V140, P15