Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Reentrant behavior of the phase stiffness in Josephson junction arrays   The phase diagram of a 2D Josephson junction array with large substrate
resistance, described by a quantum XY model, is studied by means of Fourier
path-integral Monte Carlo. A genuine Berezinskii-Kosterlitz-Thouless transition
is found up to a threshold value g* of the quantum coupling, beyond which no
phase coherence is established. Slightly below g* the phase stiffness shows a
reentrant behavior with temperature, in connection with a low-temperature
disappearance of the superconducting phase, driven by strong nonlinear quantum
fluctuations.

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The categories of this paper are: funct-an
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The categories of this paper are: patt-sol
1
The categories of this paper are: cs
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The categories of this paper are: comp-gas
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The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: eess
10
The categories of this paper are: q-bio
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The categories of this paper are: stat