Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Creating p-wave superfluids and topological excitations in optical
  lattices   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.

37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph