1304.3178 (Fernanda Pinheiro et al.)

XYZ quantum Heisenberg models with p-orbital bosons    [PDF]

Fernanda Pinheiro, Georg M. Bruun, Jani-Petri Martikainen, Jonas Larson

We demonstrate how the spin-1/2 XYZ quantum Heisenberg model can be realized with bosonic atoms loaded in the p-band of an optical lattice in the Mott regime. The sign and relative strength of the couplings characterizing the model are demonstrated to be experimentally tuneable. We discuss the phase diagram in the one dimensional case, and show that finite size effects relevant for trapped systems lead to devil's staircase structure. Finally, we discuss experimental issuesrelated to preparation, manipulation and detection.

View original: http://arxiv.org/abs/1304.3178