Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evidences for pairing of nearly-free quasiparticles from
  paraconductivity in layered superconducting cuprates   We revisit the Aslamazov-Larkin theory of paraconductivity in two dimensions,
to distinguish its universal features from the specific features of nearly-free
paired fermions. We show that both the numerical prefactor and the temperature
dependence of the experimental paraconductivity in underdoped La_{2-x}Sr_xCuO_4
are only compatible with pairing of nearly-free fermionic quasiparticles. This
conclusion is strengthened by the analysis of paraconductivity data in the
presence of a finite magnetic field, from which we extract a rather low value
of the critical field H_{c2}(T=0).

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The categories of this paper are: plasm-ph
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The categories of this paper are: chao-dyn
17
The categories of this paper are: q-fin
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
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The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
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The categories of this paper are: eess
7
The categories of this paper are: hep-th
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The categories of this paper are: ao-sci
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The categories of this paper are: patt-sol
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The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio