Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Condensation of Hard-Core Pairs on a Lattice: A Model of the
  Superconducting State in Cuprates   Using the Monte Carlo technique we study the dependence of transition
temperature, penetration depth and specific heat singularity on the pair
concentration in the Bose Hubbard model. We observe remarkable agreement with
the corresponding properties of cuprates. This points uniquely to Bose
condensation of hard-core pairs on a lattice as the mechanism that drives the
transition.

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The categories of this paper are: hep-ph
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
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
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics