Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pair Superfluid and Supersolid of Correlated Hard-Core Bosons on a
  Triangular Lattice   We have systematically studied the hard-core Bose-Hubbard model with
correlated hopping on a triangular lattice using density-matrix renormalization
group method. A rich ground state phase diagram is determined. In this phase
diagram there is a supersolid phase and a pair superfluid phase due to the
interplay between the ordinary frustrated boson hopping and an unusual
correlated hopping. In particular, we find that the quantum phase transition
between the supersolid phase and the pair superfluid phase is continuous.

36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph