Excitation spectroscopy of vortex states in dilute Bose-Einstein condensed gases

被引：127

作者：

Dodd, RJ

Burnett, K

Edwards, M

Clark, CW

机构：

[1] UNIV OXFORD, DEPT PHYS, CLARENDON LAB, OXFORD OX1 3PU, ENGLAND

[2] GEORGIA SO UNIV, DEPT PHYS, STATESBORO, GA 30460 USA

[3] US DEPT COMMERCE, NIST, DIV ELECTRON & OPT PHYS, GAITHERSBURG, MD 20899 USA

[4] US DEPT COMMERCE, NIST, PHYS LAB, GAITHERSBURG, MD 20899 USA

来源：

PHYSICAL REVIEW A | 1997年 / 56卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.56.587

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We apply linear-response analysis to the Gross-Pitaevskii equation to obtain the excitation frequencies of a Bose-Einstein condensate in a vortex state, and apply it to a system of rubidium atoms confined in a time-averaged orbiting potential trap. The excitation frequencies of a vortex differ significantly from those of the ground state, and may therefore be used to obtain a spectroscopic signature of the presence of a vortex state.

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页码：587 / 590

页数：4

相关论文

共 27 条

[1] OBSERVATION OF BOSE-EINSTEIN CONDENSATION IN A DILUTE ATOMIC VAPOR [J].

ANDERSON, MH ;

ENSHER, JR ;

MATTHEWS, MR ;

WIEMAN, CE ;

CORNELL, EA .

SCIENCE, 1995, 269 (5221) :198-201

[2]

[Anonymous], COMMUNICATION

[3] Ground-state properties of magnetically trapped Bose-condensed rubidium gas [J].

Baym, G ;

Pethick, CJ .

PHYSICAL REVIEW LETTERS, 1996, 76 (01) :6-9

[4]

Bogoliubov N. N., 1947, J. Phys. (USSR), V11, P23

[5] EVIDENCE OF BOSE-EINSTEIN CONDENSATION IN AN ATOMIC GAS WITH ATTRACTIVE INTERACTIONS [J].

BRADLEY, CC ;

SACKETT, CA ;

TOLLETT, JJ ;

HULET, RG .

PHYSICAL REVIEW LETTERS, 1995, 75 (09) :1687-1690

[6] Bosons in anisotropic traps: Ground state and vortices [J].

Dalfovo, F ;

Stringari, S .

PHYSICAL REVIEW A, 1996, 53 (04) :2477-2485

[7] BOSE-EINSTEIN CONDENSATION IN A GAS OF SODIUM ATOMS [J].

DAVIS, KB ;

MEWES, MO ;

ANDREWS, MR ;

VANDRUTEN, NJ ;

DURFEE, DS ;

KURN, DM ;

KETTERLE, W .

PHYSICAL REVIEW LETTERS, 1995, 75 (22) :3969-3973

[8]

de Gennes P. G., 1966, SUPERCONDUCTIVITY ME

[9] Approximate solutions of the nonlinear Schrodinger equation for ground and excited states of Bose-Einstein condensates [J].

Dodd, RJ .

JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, 1996, 101 (04) :545-552

[10] Zero-temperature, mean-field theory of atomic Bose-Einstein condensates [J].

Edwards, M ;

Dodd, RJ ;

Clark, CW ;

Burnett, K .

JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, 1996, 101 (04) :553-565