Collective excitations have been observed in a Rb-87 Bose condensate, confined in a magneto-static, elongated, harmonic trap. We have measured the frequency of two different modes with zero angular momentum along the symmetry axis of the trap. Both the frequencies are in good agreement with the values predicted by the hydrodynamic theory of superfluids holding in the Thomas-Fermi regime.
Collective excitations of a 87Rb Bose condensate in the Thomas-Fermi regime / Fort C.; Prevedelli M.; Minardi F.; Cataliotti F.S.; Ricci L.; Tino G.M.; Inguscio M.. - In: EUROPHYSICS LETTERS. - ISSN 1286-4854. - STAMPA. - 49:1(2000), pp. 8-13. [10.1209/epl/i2000-00112-5]
Collective excitations of a 87Rb Bose condensate in the Thomas-Fermi regime
Prevedelli M.;Minardi F.;
2000
Abstract
Collective excitations have been observed in a Rb-87 Bose condensate, confined in a magneto-static, elongated, harmonic trap. We have measured the frequency of two different modes with zero angular momentum along the symmetry axis of the trap. Both the frequencies are in good agreement with the values predicted by the hydrodynamic theory of superfluids holding in the Thomas-Fermi regime.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
