Collective excitations of a Rb-87 Bose condensate in the Thomas-Fermi regime

Authors
Fort, C Prevedelli, M Minardi, F Cataliotti, FS Ricci, L Tino, GM Inguscio, M
Citation
C. Fort et al., Collective excitations of a Rb-87 Bose condensate in the Thomas-Fermi regime, EUROPH LETT, 49(1), 2000, pp. 8-13
Citations number
17
Categorie Soggetti
Physics
Journal title
EUROPHYSICS LETTERS
ISSN journal
02955075 → ACNP
Volume
49
Issue
1
Year of publication
2000
Pages
8 - 13
Database
ISI
SICI code
0295-5075(200001)49:1<8:CEOARB>2.0.ZU;2-D
Abstract
Collective excitations have been observed in a Rb-87 Bose condensate, confi ned in a magneto-static, elongated, harmonic trap. We have measured the fre quency of two different modes with zero angular momentum along the symmetry axis of the trap. Both the frequencies are in good agreement with the valu es predicted by the hydrodynamic theory of superfluids holding in the Thoma s-Fermi regime.