



@article {1171,
	title = {d-Wave Superfluidity in Optical Lattices of Ultracold Polar Molecules},
	journal = {Physical Review A},
	volume = {84},
	year = {2011},
	month = {2011/12/29},
	abstract = {  Recent work on ultracold polar molecules, governed by a generalization of the
t-J Hamiltonian, suggests that molecules may be better suited than atoms for
studying d-wave superfluidity due to stronger interactions and larger
tunability of the system. We compute the phase diagram for polar molecules in a
checkerboard lattice consisting of weakly coupled square plaquettes. In the
simplest experimentally realizable case where there is only tunneling and an
XX-type spin-spin interaction, we identify the parameter regime where d-wave
superfluidity occurs. We also find that the inclusion of a density-density
interaction destroys the superfluid phase and that the inclusion of a
spin-density or an Ising-type spin-spin interaction can enhance the superfluid
phase. We also propose schemes for experimentally realizing the perturbative
calculations exhibiting enhanced d-wave superfluidity.
},
	doi = {10.1103/PhysRevA.84.063639},
	url = {http://arxiv.org/abs/1110.5330v2},
	author = {Kevin A. Kuns and Ana Maria Rey and Alexey V. Gorshkov}
}
