Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-body repulsive bound pairs in multi-body interacting Bose-Hubbard
  model   We study the system of multi-body interacting bosons on a two dimensional
optical lattice and analyze the formation of bound bosonic pairs in the context
of the Bose-Hubbard model. Assuming a repulsive two-body interaction we obtain
the signatures of pair formation in the regions between the Mott insulator
lobes of the phase diagram for different choices of higher order local
interactions. Considering the most general Bose-Hubbard model involving local
multi-body interactions we investigate the ground state properties utilizing
the cluster mean-field theory approach and further confirm the results by means
of sophisticated infinite Projected Entangled Pair States calculations. By
using various order parameters, we show that the choice of higher-order
interaction can lead to pair superfluid phase in the system between two
different Mott lobes. We also analyze the effect of temperature and
density-dependent tunneling to establish the stability of the PSF phase.

10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph