Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A quantum Monte Carlo study on the superconducting Kosterlitz-Thouless
  transition of the attractive Hubbard model on a triangular lattice   We study the superconducting Kosterlitz-Thouless transition of the attractive
Hubbard model on a two-dimensional triangular lattice using auxiliary field
quantum Monte Carlo method for system sizes up to $12\times 12$ sites.
Combining three methods to analyze the numerical data, we find, for the
attractive interaction of $U=-4t$, that the transition temperature stays almost
constant within the band filling range of $1.0 < n < 1.4$, while it is found to
be much lower in the $n<1$ region.

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The categories of this paper are: hep-lat
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom