Half-Quantum Vortex Molecules in a Binary Dipolar Bose Gas
Quantum Gases
2014-10-22 v1
Abstract
We study the ground state phases of a rotating two-component, or binary Bose-Einstein condensate, wherein one component possesses a large magnetic dipole moment. A variety of non-trivial phases emerge in this system, including a half-quantum vortex (HQV) chain phase and a HQV molecule phase, where HQVs of opposite charge bind at short distances. We attribute the emergence of these phases to the development of a minimum in the adiabatic HQV interaction potential, which we calculate explicitly. We thus show that the presence of dipolar interactions in this system leads to a rich phase diagram, and the formation of HQV molecules.
Cite
@article{arxiv.1406.1110,
title = {Half-Quantum Vortex Molecules in a Binary Dipolar Bose Gas},
author = {Wilbur E. Shirley and Brandon M. Anderson and Charles W. Clark and Ryan M. Wilson},
journal= {arXiv preprint arXiv:1406.1110},
year = {2014}
}
Comments
4+ pages, 4 figures