Energy barriers for vortex nucleation in dipolar condensates
Abstract
We consider singly-quantized vortex states in a condensate of 52Cr atoms in a pancake trap. We obtain the vortex solutions by numerically solving the Gross-Pitaevskii equation in the rotating frame with no further approximations. The behavior of the condensate is studied under three different situations concerning the interactions: only s-wave, s-wave plus dipolar and only dipolar. The energy barrier for the nucleation of a vortex is calculated as a function of the vortex displacement from the rotation axis in the three cases. These results are compared to those obtained for contact interaction condensates in the Thomas-Fermi approximation, and to a pseudo-analytical model, showing this latter a very good agreement with the numerical calculation.
Keywords
Cite
@article{arxiv.0910.5668,
title = {Energy barriers for vortex nucleation in dipolar condensates},
author = {M. Abad and M. Guilleumas and R. Mayol and M. Pi and D. M. Jezek},
journal= {arXiv preprint arXiv:0910.5668},
year = {2015}
}
Comments
Submitted to Laser Physics