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Activated nucleation of vortices in a Dipole-Blockaded Supersolid condensate

Mason, P.; Josserand, C.; Rica, S.

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Authors

P. Mason

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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Copyright Statement
© 2012 American Physical Society





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