Spin-orbit coupled weakly interacting Bose-Einstein condensates in harmonic traps
Quantum Gases
2012-02-24 v3
Abstract
We investigate theoretically the phase diagram of a spin-orbit coupled Bose gas in two-dimensional harmonic traps. We show that discrete Landau levels develop at strong spin-orbit coupling. For a weakly interacting gas, quantum states with skyrmion lattice patterns emerge spontaneously and preserve either parity symmetry or combined parity-time-reversal symmetry. These phases can be readily observed by experimentally engineering spin-orbit coupling and interatomic interactions for a cloud of Rb atoms in a highly oblate trap.
Cite
@article{arxiv.1108.4233,
title = {Spin-orbit coupled weakly interacting Bose-Einstein condensates in harmonic traps},
author = {Hui Hu and B. Ramachandhran and Han Pu and Xia-Ji Liu},
journal= {arXiv preprint arXiv:1108.4233},
year = {2012}
}
Comments
4 pages, 4 figures, accepted for publication in Physical Review Letters