Quantized circulation in dilute Bose-Einstein condensates

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

doi:10.1016/S0010-4655(01)00369-1

Quantized circulation in dilute Bose-Einstein condensates

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

Research output: Contribution to journal › Article › Research › peer-review

9 Citations (Scopus)

Abstract

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 T_c.

Original language	English
Pages (from-to)	396-400
Number of pages	5
Journal	Computer Physics Communications
Volume	142
Issue number	1-3
DOIs	https://doi.org/10.1016/S0010-4655(01)00369-1
Publication status	Published - 15 Dec 2001
Externally published	Yes

Keywords

Bose-Einstein condensation
Finite-difference methods
Vortices

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10.1016/S0010-4655(01)00369-1

Cite this

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AU - Virtanen, S. M M

AU - Salomaa, M. M.

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N2 - 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.

AB - 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.

KW - Bose-Einstein condensation

KW - Finite-difference methods

KW - Vortices

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U2 - 10.1016/S0010-4655(01)00369-1

DO - 10.1016/S0010-4655(01)00369-1

M3 - Article

AN - SCOPUS:0035893051

SN - 0010-4655

VL - 142

SP - 396

EP - 400

JO - Computer Physics Communications

JF - Computer Physics Communications

IS - 1-3

ER -

Quantized circulation in dilute Bose-Einstein condensates

Abstract

Keywords

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