Competing structures in 2D-trapped dipolar gases
Quantum Gases
2015-02-12 v1
Abstract
We study a system of dipolar molecules confined in a two-dimensional trap and subject to an optical square lattice. The repulsive long-range dipolar interaction favors an equilateral triangular arrangement of the molecules, which competes against the square symmetry of the underlying optical lattice with lattice constant and amplitude . We find the minimal-energy states at the commensurate density and establish the complete square-to-triangular transformation pathway of the lattice with decreasing involving period-doubled, solitonic, and distorted-triangular configurations.
Cite
@article{arxiv.1502.03214,
title = {Competing structures in 2D-trapped dipolar gases},
author = {Barbara Gränz and Sergey E. Korshunov and Vadim B. Geshkenbein and Gianni Blatter},
journal= {arXiv preprint arXiv:1502.03214},
year = {2015}
}