Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Off-site trimer superfluid on a one-dimensional optical lattice   The Bose-Hubbard model with an effective off-site three-body tunneling,
characterized by jumps towards one another, between one atom on a site and a
pair atoms on the neighborhood site, is studied systematically on a
one-dimensional lattice, by using the density matrix renormalization group
method. The off-site trimer superfluid, condensing at momentum $k=0$, emerges
in the softcore Bose-Hubbard model but it disappears in the hardcore
Bose-Hubbard model. Our results numerically verify that the off-site trimer
superfluid phase derived in the momentum space from [Phys. Rev. A {\bf 81},
011601(R) (2010)] is stable in the thermodynamic limit. The off-site trimer
superfluid phase, the partially off-site trimer superfluid phase and the Mott
insulator phase are found, as well as interesting phase transitions, such as
the continuous or first-order phase transition from the trimer superfluid phase
to the Mott insulator phase. Our results are helpful in realizing this novel
off-site trimer superfluid phase by cold atom experiments.

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The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
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The categories of this paper are: supr-con
7
The categories of this paper are: hep-th