Bose-Einstein condensation in a one-dimensional interacting system due to power-law trapping potentials

被引:15
作者
Bayindir, M [1 ]
Tanatar, B [1 ]
Gedik, Z [1 ]
机构
[1] Bilkent Univ, Dept Phys, TR-06533 Bilkent, Turkey
关键词
D O I
10.1103/PhysRevA.59.1468
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We examine the possibility of Bose-Einstein condensation in one-dimensional interacting Bose gas subjected to confining potentials of the form V-ext(x) = V-0(\x\/a)(gamma), in which gamma<2, by solving the Gross-Pitaevskii equation within the semiclassical two-fluid model. The condensate fraction, chemical potential, ground state energy, and specific heat of the system are calculated for various values of interaction strengths. Our results show that a significant fraction of the particles is in the lowest energy state for a finite number of particles at low temperature, indicating a phase transition for weakly interacting systems. [S1050-2947(99)00902-6].
引用
收藏
页码:1468 / 1472
页数:5
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