https://doi.org/10.1140/epjst/e2013-01767-5
Review
Giant vortex phase transition in rapidly rotating trapped Bose-Einstein condensates
1 Dipartimento di Matematica, Università degli Studi Roma Tre, Largo San Leonardo Murialdo 1, 00146 Roma, Italy
2 DAMTP, University of Cambridge, Wilbertforce Road, Cambridge CB3 0WA, UK
3 Université Grenoble 1 & CNRS, LPMMC (UMR 5493), BP. 166, 38042 Grenoble, France
4 Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria
5 Erwin Schrödinger Institute for Mathematical Physics, Boltzmanngasse 9, 1090 Vienna, Austria
a e-mail: nicolas.rougerie@grenoble.cnrs.fr
Received:
4
September
2012
Revised:
15
January
2013
Published online:
11
March
2013
A Bose-Einstein condensate of cold atoms is a superfluid and thus responds to rotation of its container by the nucleation of quantized vortices. If the trapping potential is sufficiently strong, there is no theoretical limit to the rotation frequency one can impose to the fluid, and several phase transitions characterized by the number and distribution of vortices occur when it is increased from 0 to ∞. In this note we focus on a regime of very large rotation velocity where vortices disappear from the bulk of the fluid, gathering in a central hole of low matter density induced by the centrifugal force.
© EDP Sciences, Springer-Verlag, 2013
