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Author:

Xu, Fei (Xu, Fei.) | Xie, Hehu (Xie, Hehu.) | Xie, Manting (Xie, Manting.) | Yue, Meiling (Yue, Meiling.)

Indexed by:

Scopus SCIE

Abstract:

In this paper, a new kind of multigrid method is proposed for the ground state solution of Bose-Einstein condensates based on Newton iteration scheme. Instead of treating eigenvalue lambda and eigenvector u separately, we regard the eigenpair (lambda,u) as one element in the composite space RxH(0)(1)(Omega) and then Newton iteration step is adopted for the nonlinear problem. Thus in this multigrid scheme, the main computation is to solve a linear discrete boundary value problem in every refined space, which can improve the overall efficiency for the simulation of Bose-Einstein condensations.

Keyword:

Nonlinear eigenvalue problem Multigrid method Finite element method BEC GPE

Author Community:

  • [ 1 ] [Xu, Fei]Beijing Univ Technol, Fac Sci, Beijing Inst Sci & Engn Comp, Beijing 100124, Peoples R China
  • [ 2 ] [Xie, Hehu]Chinese Acad Sci, Acad Math & Syst Sci, ICMSEC, LSEC, Beijing 100190, Peoples R China
  • [ 3 ] [Xie, Hehu]Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China
  • [ 4 ] [Xie, Manting]Tianjin Univ, Ctr Appl Math, Tianjin 300072, Peoples R China
  • [ 5 ] [Yue, Meiling]Beijing Technol & Business Univ, Sch Math & Stat, Beijing 100048, Peoples R China

Reprint Author's Address:

  • [Yue, Meiling]Beijing Technol & Business Univ, Sch Math & Stat, Beijing 100048, Peoples R China

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Source :

BIT NUMERICAL MATHEMATICS

ISSN: 0006-3835

Year: 2021

Issue: 2

Volume: 61

Page: 645-663

1 . 5 0 0

JCR@2022

ESI Discipline: MATHEMATICS;

ESI HC Threshold:31

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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