Bose-Einstein condensation in a two-dimensional, trapped, interacting gas

被引:36
作者
Bayindir, M [1 ]
Tanatar, B [1 ]
机构
[1] Bilkent Univ, Dept Phys, TR-06533 Bilkent, Turkey
来源
PHYSICAL REVIEW A | 1998年 / 58卷 / 04期
关键词
D O I
10.1103/PhysRevA.58.3134
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We study the Bose-Einstein condensation phenomenon in a two-dimensional (2D) system of bosons subjected to a harmonic-oscillator-type confining potential. The interaction among the 2D bosons is described by a delta function in configuration space. Solving the Gross-Pitaevskii equation within the two-fluid model we calculate the condensate fraction, ground-state energy, and specific heat of the system. Our results indicate that interacting bosons have similar behavior to those of an ideal system for weak interactions. [S1050-2947(98)00210-8].
引用
收藏
页码:3134 / 3137
页数:4
相关论文
共 24 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]   BOSE-EINSTEIN CONDENSATION IN AN EXTERNAL POTENTIAL [J].
BAGNATO, V ;
PRITCHARD, DE ;
KLEPPNER, D .
PHYSICAL REVIEW A, 1987, 35 (10) :4354-4358
[3]   BOSE-EINSTEIN CONDENSATION IN LOW-DIMENSIONAL TRAPS [J].
BAGNATO, V ;
KLEPPNER, D .
PHYSICAL REVIEW A, 1991, 44 (11) :7439-7441
[4]   Ground-state properties of magnetically trapped Bose-condensed rubidium gas [J].
Baym, G ;
Pethick, CJ .
PHYSICAL REVIEW LETTERS, 1996, 76 (01) :6-9
[5]   Bose-Einstein condensation of lithium: Observation of limited condensate number [J].
Bradley, CC ;
Sackett, CA ;
Hulet, RG .
PHYSICAL REVIEW LETTERS, 1997, 78 (06) :985-989
[6]   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
[7]   Trapped Bose-Einstein condensates at finite temperature: A two-gas model [J].
Dodd, RJ ;
Burnett, K ;
Edwards, M ;
Clark, CW .
ACTA PHYSICA POLONICA A, 1998, 93 (01) :45-53
[8]   Bose-Einstein condensation in a dilute gas: Measurement of energy and ground-state occupation [J].
Ensher, JR ;
Jin, DS ;
Matthews, MR ;
Wieman, CE ;
Cornell, EA .
PHYSICAL REVIEW LETTERS, 1996, 77 (25) :4984-4987
[9]  
Giorgini S, 1997, J LOW TEMP PHYS, V109, P309
[10]   Conserving and gapless approximations for an inhomogeneous Bose gas at finite temperatures [J].
Griffin, A .
PHYSICAL REVIEW B, 1996, 53 (14) :9341-9347