Energy and vorticity in fast rotating Bose-Einstein condensates

Autor(en)

Michele Correggi, Jakob Yngvason

Abstrakt

We study a rapidly rotating Bose-Einstein condensate confined to a finite trap in the framework of two-dimensional Gross-Pitaevskii theory in the strong coupling (Thomas-Fermi) limit. Denoting the coupling parameter by 1/epsilon(2) and the rotational velocity by Omega, we evaluate exactly the next to the leading-order contribution to the ground-state energy in the parameter regime vertical bar log epsilon vertical bar 0. While the TF energy includes only the contribution of the centrifugal forces the next order corresponds to a lattice of vortices whose density is proportional to the rotational velocity.

Organisation(en)

Mathematische Physik

Externe Organisation(en)

Università degli Studi di Trento

Journal

Journal of Physics A: Mathematical and Theoretical

Band

41

Anzahl der Seiten

19

ISSN

1751-8113

DOI

https://doi.org/10.1088/1751-8113/41/44/445002

Publikationsdatum

2008

Peer-reviewed

Ja

ÖFOS 2012

103019 Mathematische Physik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/1d3bc573-05a1-4033-8089-802d88837225