EXCITATION SPECTROSCOPY OF VORTEX STATES IN DILUTE BOSE-EINSTEIN CONDENSED GASES

Authors
DODD RJ BURNETT K EDWARDS M CLARK CW
Citation
Rj. Dodd et al., EXCITATION SPECTROSCOPY OF VORTEX STATES IN DILUTE BOSE-EINSTEIN CONDENSED GASES, Physical review. A, 56(1), 1997, pp. 587-590
Citations number
27
Categorie Soggetti
Physics
Journal title
Physical review. A → ACNP
ISSN journal
10502947
Volume
56
Issue
1
Year of publication
1997
Pages
587 - 590
Database
ISI
SICI code
1050-2947(1997)56:1<587:ESOVSI>2.0.ZU;2-J
Abstract
We apply linear-response analysis to the Gross-Pitaevskii equation to obtain the excitation frequencies of a Bose-Einstein condensate in a v ortex state, and apply it to a system of rubidium atoms confined in a time-averaged orbiting potential trap. The excitation frequencies of a vortex differ significantly from those of the ground state, and may t herefore be used to obtain a spectroscopic signature of the presence o f a vortex state.