Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Competition between electronic cooling and Andreev dissipation in a
  superconducting micro-cooler   We discuss very low temperature experiments on superconducting micro-coolers
made of a double Normal metal - Insulator - Superconductor junction. We
investigate with a high resolution the differential conductance of the
micro-cooler as well as of additional probe junctions. There is an explicit
crossover between the single quasi-particle current and the phase-coherent
Andreev current. We establish a thermal model by considering the thermal
contribution due to the Andreev current. The related increase of the electron
temperature is discussed, including the influence of several parameters like
the phase-coherence length or the tunnel junction transparency.

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The categories of this paper are: comp-gas
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The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
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The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
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The categories of this paper are: patt-sol
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The categories of this paper are: mtrl-th
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The categories of this paper are: eess
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The categories of this paper are: bayes-an
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The categories of this paper are: ao-sci
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The categories of this paper are: q-alg
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-ex
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The categories of this paper are: math-ph
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The categories of this paper are: econ