Parallel numerical simulations for quantized vortices in Bose--Einstein condensates

doi:10.1088/1009-1963/16/1/005

中国物理B ›› 2007, Vol. 16 ›› Issue (1): 32-37.doi: 10.1088/1009-1963/16/1/005

Parallel numerical simulations for quantized vortices in Bose--Einstein condensates

王德生¹, 黄朝晖²

(1)Department of Civil Engineering, University of Wales Swansea, Singleton, Swansea, UK; (2)State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences,Beijing 100080, China

收稿日期:2006-03-13 修回日期:2006-08-14 出版日期:2007-02-01 发布日期:2007-02-01
基金资助:
Project supported partly by the National Natural Science Foundation of China (Grant Nos 10301034 and 40574069).

Parallel numerical simulations for quantized vortices in Bose--Einstein condensates

Huang Zhao-Hui(黄朝晖)^a)^† and Wang De-Sheng(王德生)^b)

^a State Key Laboratory of Space Weather, Center for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100080, China; ^b Department of Civil Engineering, University of Wales Swansea, Singleton, Swansea, UK

Received:2006-03-13 Revised:2006-08-14 Online:2007-02-01 Published:2007-02-01
Supported by:
Project supported partly by the National Natural Science Foundation of China (Grant Nos 10301034 and 40574069).

摘要/Abstract

摘要： We employ the parallel computing technology to study numerically the three-dimensional structure of quantized vortices of Bose--Einstein condensates. For anisotropic cases, the bending process of vortices is described in detail by the decrease of Gross--Pitaevskii energy. A completely straight vortex and the steady and symmetrical multiple-vortex configurations are obtained. We analyse the effect of initial conditions and angular velocity on the number and shape of vortices.

关键词: 3D numerical simulations, quantized vortices, Bose--Einstein condensates, parallel computing

Abstract: We employ the parallel computing technology to study numerically the three-dimensional structure of quantized vortices of Bose--Einstein condensates. For anisotropic cases, the bending process of vortices is described in detail by the decrease of Gross--Pitaevskii energy. A completely straight vortex and the steady and symmetrical multiple-vortex configurations are obtained. We analyse the effect of initial conditions and angular velocity on the number and shape of vortices.

Key words: 3D numerical simulations, quantized vortices, Bose--Einstein condensates, parallel computing

中图分类号: (Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations)

03.75.Lm

黄朝晖, 王德生. Parallel numerical simulations for quantized vortices in Bose--Einstein condensates[J]. 中国物理B, 2007, 16(1): 32-37.

Huang Zhao-Hui(黄朝晖) and Wang De-Sheng(王德生). Parallel numerical simulations for quantized vortices in Bose--Einstein condensates[J]. Chinese Physics, 2007, 16(1): 32-37.

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Parallel numerical simulations for quantized vortices in Bose--Einstein condensates

Parallel numerical simulations for quantized vortices in Bose--Einstein condensates

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