Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coexistence of two kinds of superfluidity in Bose-Hubbard model with
  density-induced tunneling at finite temperatures   With use of the U(1) quantum rotor method in the path integral effective
action formulation, we have confirmed the mathematical similarity of the phase
Hamiltonian and of the extended Bose-Hubbard model with density-induced
tunneling (DIT). Moreover, we have shown that the latter model can be mapped to
a pseudospin Hamiltonian that exhibits two coexisting (single-particle and
pair) superfluid phases. Phase separation of the two has also been confirmed,
determining that there exists a range of coefficients in which only pair
condensation, and not single-particle superfluidity, is present. The DIT part
supports the coherence in the system at high densities and low temperatures,
but also has dissipative effects independent of the system's thermal
properties.

9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
24
The categories of this paper are: dg-ga
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
0
The categories of this paper are: hep-ph