Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finite temperature properties of the two-dimensional SU(2)
  Kondo-necklace   We analyse several thermodynamic properties of the two-dimensional Kondo
necklace using finite-temperature stochastic series expansion. In agreement
with previous zero-temperature findings the model is shown to exhibit a quantum
critical point (QCP), separating an antiferromagnetic from a paramagnetic
dimerized state at a critical Kondo exchange-coupling strength $J_{c}\approx
1.4$. We evaluate the temperature dependent uniform and staggered structure
factors as well as the uniform and staggered susceptibilities and the local
'impurity' susceptibility close to the QCP as well as in the ordered and
quantum disordered phase. The crossover between the classical, renormalized
classical, and quantum critical regime is analyzed as a function of temperature
and Kondo coupling.

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The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess