Superfluid toroidal currents in atomic condensates
| Data(s) |
01/12/2003
|
|---|---|
| Identificador | |
| Idioma(s) |
eng |
| Direitos |
info:eu-repo/semantics/restrictedAccess |
| Fonte |
Nugent , E , McPeake , D & McCann , J F 2003 , ' Superfluid toroidal currents in atomic condensates ' Physical Review A , vol 68 , no. 6 , pp. 063606 . |
| Palavras-Chave | #/dk/atira/pure/subjectarea/asjc/3100 #Physics and Astronomy(all) #/dk/atira/pure/subjectarea/asjc/3100/3107 #Atomic and Molecular Physics, and Optics |
| Tipo |
article |
| Resumo |
The spectrum of collective excitations of oblate toroidal condensates within the Bogoliubov approximation was studied, and the dynamical stability of ring currents around the torus explored. The transition from spheroidal to toroidal geometry of the trap displaced the energy levels into narrow bands. A simple, but accurate, formula was detailed for the lowest angular acoustic modes of excitation, and the splitting energy when a background current is present. |
