Adiabaticity criterion for moving vortices in dilute Bose-Einstein condensates - art. no. 230403

Citation
Sm. Virtanen et al., Adiabaticity criterion for moving vortices in dilute Bose-Einstein condensates - art. no. 230403, PHYS REV L, 8723(23), 2001, pp. 0403
Citations number
25
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
8723
Issue
23
Year of publication
2001
Database
ISI
SICI code
0031-9007(200112)8723:23<0403:ACFMVI>2.0.ZU;2-0
Abstract
Considering a moving vortex line in a dilute atomic Bose-Einstein condensat e within time-dependent Hartree-Fock-Bogoliubov-Popov theory, we derive a c riterion for the quasiparticle excitations to follow the vortex core rigidl y. The assumption of adiabaticity, which is crucial for the validity of the stationary self-consistent theories in describing such time-dependent phen omena, is shown to imply a stringent criterion for the velocity of the vort ex line. Furthermore, this condition is shown to be violated in the recent vortex precession experiments.