Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universality of vertex corrections to the electrical conductivity in
  models with elastically scattered electrons   We study quantum coherence of elastically scattered lattice fermions. We
calculate vertex corrections to the electrical conductivity of electrons
scattered either on thermally equilibrated or statically distributed random
impurities. We demonstrate that the sign of the vertex corrections to the Drude
conductivity is in both cases negative. Quantum coherence due to elastic
back-scatterings always leads to diminution of diffusion.

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The categories of this paper are: hep-ex
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The categories of this paper are: ao-sci
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
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The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
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The categories of this paper are: gr-qc