P. Mason
Activated nucleation of vortices in a Dipole-Blockaded Supersolid condensate
Mason, P.; Josserand, C.; Rica, S.
Authors
C. Josserand
S. Rica
Abstract
We investigate theoretically and numerically a model of a supersolid in a dipole-blockaded Bose-Einstein condensate. The dependence of the superfluid fraction with an imposed thermal bath and a uniform boost velocity on the condensate is considered. Specifically, we observe a critical velocity for the nucleation of vortices in our system that is strongly linked to a steplike decrease in the superfluid fraction. We are able to use a scaling argument based on the energy required to activate a vortex, relating the critical temperature to the critical velocity, and find that this relationship is in good agreement with the numerical simulations carried out on the nonlocal Gross-Pitaevskii equation.
Citation
Mason, P., Josserand, C., & Rica, S. (2012). Activated nucleation of vortices in a Dipole-Blockaded Supersolid condensate. Physical Review Letters, 109(4), Article 045301. https://doi.org/10.1103/physrevlett.109.045301
Journal Article Type | Article |
---|---|
Publication Date | Jan 1, 2012 |
Deposit Date | Jan 28, 2013 |
Publicly Available Date | Jan 31, 2013 |
Journal | Physical Review Letters |
Print ISSN | 0031-9007 |
Electronic ISSN | 1079-7114 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 109 |
Issue | 4 |
Article Number | 045301 |
DOI | https://doi.org/10.1103/physrevlett.109.045301 |
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