Dielectric formalism and damping of collective modes in trapped Bose-Einstein condensed gases

被引：15

作者：

Bene, G

Szepfalusy, P

机构：

[1] Eotvos Lorand Univ, Inst Theoret Phys, H-1088 Budapest, Hungary

[2] Eotvos Lorand Univ, Dept Phys Complex Syst, H-1088 Budapest, Hungary

[3] Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary

来源：

PHYSICAL REVIEW A | 1998年 / 58卷 / 05期

关键词：

D O I：

10.1103/PhysRevA.58.R3391

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present the general dielectric formalism for Bose-Einstein condensed systems in an external potential at finite temperatures. On the basis of a model arising within this framework as a first approximation in an intermediate-temperature region for the large condensate we calculate the damping of low-energy excitations in the collisionless regime. [S1050-2947(98)50511-2].

引用

收藏

页码：R3391 / R3394

页数：4

相关论文

共 28 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] STRUCTURE OF THE EXCITATION SPECTRUM OF LIQUID-HE-4 [J].

BLAGOVESHCHENSKII, NM ;

BOGOYAVLENSKII, IV ;

KARNATSEVICH, LV ;

KOZLOV, ZA ;

KOLOBRODOV, VG ;

PRIEZZHEV, VB ;

PUCHKOV, AV ;

SKOMOROKHOV, AN .

PHYSICAL REVIEW B, 1994, 50 (22) :16550-16565

[3] 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

[4] 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

[5] Collective excitations of Bose-Einstein-condensed gases at finite temperatures [J].

Dodd, RJ ;

Edwards, M ;

Clark, CW ;

Burnett, K .

PHYSICAL REVIEW A, 1998, 57 (01) :R32-R35

[6] Damping of low-energy excitations of a trapped Bose-Einstein condensate at finite temperatures [J].

Fedichev, PO ;

Shlyapnikov, GV ;

Walraven, JTM .

PHYSICAL REVIEW LETTERS, 1998, 80 (11) :2269-2272

[7]

FEDICHEV PO, CONDMAT9805015

[8] 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

[9]

GIORDINI S, CONDMAT9709259

[10]

Griffin A., 1993, EXCITATIONS BOSE CON