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 \infty. 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.

Correggi, M., Pinsker, F., Rougerie, N., Yngvason, J. (2013). Giant Vortex Phase Transition in Rapidly Rotating Trapped Bose-Einstein Condensates. THE EUROPEAN PHYSICAL JOURNAL. SPECIAL TOPICS, 217, 183-188 [10.1140/epjst/e2013-01767-5].

### Giant Vortex Phase Transition in Rapidly Rotating Trapped Bose-Einstein Condensates

#### Abstract

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 \infty. 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.
##### Scheda breve Scheda completa Scheda completa (DC)
Correggi, M., Pinsker, F., Rougerie, N., Yngvason, J. (2013). Giant Vortex Phase Transition in Rapidly Rotating Trapped Bose-Einstein Condensates. THE EUROPEAN PHYSICAL JOURNAL. SPECIAL TOPICS, 217, 183-188 [10.1140/epjst/e2013-01767-5].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/135702
• ND
• 8
• 8