Vortices in Bose-Einstein Condensates: Experiments

Tyler W. Neely, Chad N. Weiler, David R. Scherer +3 more

Amandine Aftalion

One of the key issues related to superfluidity is the existence of vortices. In very recent experiments on Bose–Einstein condensates, vortices have been observed by rotating the trap holding the atoms

R. Srinivasan

Dora M. Jezek, P. Capuzzi, Horacio M. Cataldo

We develop a three-dimensional analysis of the phase separation of two-species Bose-Einstein condensates in the presence of vorticity within the Thomas-Fermi approximation. We find different segregation features according to whether the more repulsive component is in a vortex or in a vortex-free state. An application of this study is aimed at describing systems formed by two almost immiscible species of rubidium-87 that are commonly used in Bose-Einstein condensation experiments. In particular, in this work we calculate the density profiles of condensates for the same conditions as the states prepared in the experiments performed at JILA [Matthews et al., Phys. Rev. Lett. 83, 2498 (1999)].

Nicholas G. Parker, B. Jackson, A. Martin +1 more

Yimin Tian

For a Bose-Einstein Condensate placed in a rotating trap and confined in the z axis, a kind of symplectic difference schemes was used to investigate the evolution of vortices of BEC in this paper. The case of the evolution of three vortices in BEC was imitated by numerical experiment.