A fast algorithm for the solution of the time-independent Gross--Pitaevskii equation

  • Authors:
  • Yung-Sze Choi;Juha Javanainen;Israel Koltracht;Marijan Koštrun;Patrick J. McKenna;Nataliya Savytska

  • Affiliations:
  • Department of Mathematics, University of Connecticut, Storrs, CT;Department of Physics, University of Connecticut, Storrs, CT;Department of Mathematics, University of Connecticut, Storrs, CT;Department of Physics, University of Connecticut, Storrs, CT;Department of Mathematics, University of Connecticut, Storrs, CT;Department of Mathematics, University of Connecticut, Storrs, CT

  • Venue:
  • Journal of Computational Physics
  • Year:
  • 2003

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Abstract

A new efficient numerical method for the solution of the time-independent Gross-Pitaevskii partial differential equation in three spatial variables is introduced. This equation is converted into an equivalent fixed-point form and is discretized using the collocation method at zeros of Legendre polynomials. Numerical comparisons with a state-of-the-art method based on propagating the solution of the time-dependent Gross-Pitaevskii equation in imaginary time are presented.