Spin-orbit-coupling-driven superfluid states in optical lattices at zero and finite temperatures
Spin-orbit-coupling-driven superfluid states in optical lattices at zero and finite temperatures
We investigate the quantum phase transitions of a two-dimensional Bose-Hubbard model in the presence of a Rashba spin-orbit coupling with and without thermal fluctuations. The interplay of single-particle hopping, strength of spin-orbit coupling, and interspin interaction leads to superfluid phases with distinct properties. With interspin interactions weaker than intraspin interactions, …