Bosons in a toroidal trap: Ground state and vortices
Year: 1998
Authors: Salasnich L., Parola A., Reatto L.
Autors Affiliation: 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.
Journal/Review: PHYSICAL REVIEW A
Volume: 59 (4) Pages from: 2990 to: 2995
KeyWords: quantized vorticesDOI: 10.1103/PhysRevA.59.2990Citations: 41data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-11-24References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here