%0 Journal Article
%J Phys. Rev. A
%D 2010
%T Creating p-wave superfluids and topological excitations in optical lattices
%A Massignan, P.
%A Sanpera, A.
%A Lewenstein, M.
%X We propose to realize a p-wave superfluid using bosons mixed with a single species of fermions in a deep optical lattice. We analyze with a self-consistent method its excitation spectrum in presence of a vortex, and we point out the range of interaction strengths in which the zero-energy mode with topological character exists on a finite optical lattice. Lattice effects are strongest close to fermionic half filling: here the linearity of the low-lying spectrum is lost, and a new class of extended zero-energy modes with checkerboard structure and d-wave symmetry appears.
%B Phys. Rev. A
%I American Physical Society
%V 81
%P 031607
%8 Mar/2010
%U http://link.aps.org/doi/10.1103/PhysRevA.81.031607
%R 10.1103/PhysRevA.81.031607