Bosons in a toroidal trap: Ground state and vortices

Anno: 1998

Autori: Salasnich L., Parola A., Reatto L.

Affiliazione autori: Ist Nazl Fis Mat, Unita Milano, I-20133 Milan, Italy

Abstract: We study the Bose-Einstein condensate (BEC) in a three-dimensional toroidal sombrero-shaped trap. By changing the parameters of the potential, or the number of bosons, it is possible to modify strongly the density profile of the BEG. We consider the ground-state properties for positive and negative scattering length and calculate the spectrum elementary excitations. We also discuss the macroscopic phase coherence and superfluidity of the BEC by analyzing vortex states and their stability.

Giornale/Rivista: PHYSICAL REVIEW A

Volume: 59 (4)      Da Pagina: 2990  A: 2995

Parole chiavi: quantized vortices
DOI: 10.1103/PhysRevA.59.2990

Citazioni: 41
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2025-05-18
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