Abstract The phenomenon of Bose-Einstein condensation of dilute gases in traps is
reviewed from a theoretical perspective. Mean-field theory provides a framework to …

After reviewing the ideal Bose-Einstein gas in a box and in a harmonic trap, the effect of
interactions on the formation of a Bose-Einstein condensate are discussed, along with the …

Using a focused laser beam we stir a Bose-Einstein condensate of 87 Rb confined in a
magnetic trap and observe the formation of a vortex for a stirring frequency exceeding a …

We have created vortices in two-component Bose-Einstein condensates. The vortex state
was created through a coherent process involving the spatial and temporal control of …

抄録 The Bogoliubov theory is extended to a Bose-Einstein condensation withinternal
degrees of freedom, realized recently in 23 Na gases whereseveral hyperfine statesare …

Abstract Bose-Einstein condensation of 7 Li has been studied in a magnetically trapped gas.
Because of the effectively attractive interactions between 7 Li atoms, many-body quantum …

We study the numerical solution of the time-dependent Gross–Pitaevskii equation (GPE)
describing a Bose–Einstein condensate (BEC) at zero or very low temperature. In …

We investigate the low energy excitations of a dilute atomic Bose gas confined in a harmonic
trap of frequency ω 0 and interacting with repulsive forces. The dispersion law ω= ω 0 (2 n …

A comparative review is given of some well-known and some recent results obtained in
studies of two-and three-dimensional (2D and 3D) solitons, with emphasis on states carrying …

We present the first theoretical treatment that accounts in detail for a recent observation of
overlap** Bose-Einstein condensates of two different 87 Rb hyperfine states [CJ Myatt et …