Quantized circulation in dilute Bose-Einstein condensates

T. P. Simula, S. M M Virtanen, M. M. Salomaa

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We compute using a microscopic mean-field theory the structure and the quasiparticle excitation spectrum of a dilute, trapped Bose-Einstein condensate penetrated by an axisymmetric vortex line. The Gross-Pitaevskii equation for the condensate and the coupled Hartree-Fock-Bogoliubov-Popov equations describing the elementary excitations are solved self-consistently using finite-difference methods. We find locally stable vortex configurations at all temperatures below Tc.

Original languageEnglish
Pages (from-to)396-400
Number of pages5
JournalComputer Physics Communications
Issue number1-3
Publication statusPublished - 15 Dec 2001
Externally publishedYes


  • Bose-Einstein condensation
  • Finite-difference methods
  • Vortices

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