Exciting, cooling, and vortex trapping in a Bose-condensed gas

被引：38

作者：

Marshall, RJ ^{[1
]}

New, GHC

Burnett, K

Choi, S

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Phys, Laser Opt & Spect Grp, ULR, London SW7 2BZ, England

[2] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

来源：

PHYSICAL REVIEW A | 1999年 / 59卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.59.2085

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A straightforward numerical technique, based on the Gross-Pitaevskii equation, is used to generate a self-consistent description of thermally excited states of a dilute boson gas. The process of evaporative cooling is then modeled by following the time evolution of the system using the same equation. It is shown that the subsequent rethermalization of the thermally excited state produces a cooler coherent condensate. Other results presented show that trapping vortex states with the ground state may be possible in a two-dimensional experimental environment. [S1050-2947(99)10802-3].

引用

收藏

页码：2085 / 2093

页数：9

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