Sound propagation in a cylindrical Bose-condensed gas

被引：125

作者：

Zaremba, E ^{[1
]}

机构：

[1] Queens Univ, Dept Phys, Kingston, ON K7L 3N6, Canada

来源：

PHYSICAL REVIEW A | 1998年 / 57卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.57.518

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the normal modes of a cylindrical Bose condensate at T = 0 using the linearized time-dependent Gross-Pitaevskii equation in the Thomas-Fermi limit. These modes are relevant to the recent observation of pulse propagation in long, cigar-shaped traps. We find that pulses generated in a cylindrical condensate propagate with little spread at a speed c = root g (n) over bar/m, where (n) over bar is the average density of the condensate over its cross-sectional area. [S1050-2947(98)06301-X].

引用

收藏

页码：518 / 521

页数：4

相关论文

共 13 条

[1] Propagation of sound in a Bose-Einstein condensate [J].

Andrews, MR ;

Kurn, DM ;

Miesner, HJ ;

Durfee, DS ;

Townsend, CG ;

Inouye, S ;

Ketterle, W .

PHYSICAL REVIEW LETTERS, 1997, 79 (04) :553-556

[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] Order parameter at the boundary of a trapped Bose gas [J].

Dalfovo, F ;

Pitaevskii, L ;

Stringari, S .

PHYSICAL REVIEW A, 1996, 54 (05) :4213-4217

[5] Collective excitations of atomic Bose-Einstein condensates [J].

Edwards, M ;

Ruprecht, PA ;

Burnett, K ;

Dodd, RJ ;

Clark, CW .

PHYSICAL REVIEW LETTERS, 1996, 77 (09) :1671-1674

[6] Hydrodynamic excitations of Bose condensates in anisotropic traps [J].

Fliesser, M ;

Csordas, A ;

Szepfalusy, P ;

Graham, R .

PHYSICAL REVIEW A, 1997, 56 (04) :R2533-R2536

[7] STRUCTURE OF A QUANTIZED VORTEX IN BOSON SYSTEMS [J].

GROSS, EP .

NUOVO CIMENTO, 1961, 20 (03) :454-+

[8] Collective excitations of a Bose-Einstein condensate in a magnetic trap [J].

Mewes, MO ;

Andrews, MR ;

vanDruten, NJ ;

Kurn, DM ;

Durfee, DS ;

Townsend, CG ;

Ketterle, W .

PHYSICAL REVIEW LETTERS, 1996, 77 (06) :988-991

[9] Low energy excitations of a Bose-Einstein condensate: A time-dependent variational analysis [J].

PerezGarcia, VM ;

Michinel, H ;

Cirac, JI ;

Lewenstein, M ;

Zoller, P .

PHYSICAL REVIEW LETTERS, 1996, 77 (27) :5320-5323

[10]

PITAEVSKII LP, 1963, J MATH PHYS, V4, P195