Quantized circulation in dilute Bose–Einstein condensates
نویسنده
چکیده
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. 2001 Elsevier Science B.V. All rights reserved. PACS: 02.70.Bf; 03.75.Fi; 67.40.Db
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