Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Diagrammatic method of integration over the unitary group, with
  applications to quantum transport in mesoscopic systems   A diagrammatic method is presented for averaging over the circular ensemble
of random-matrix theory. The method is applied to phase-coherent conduction
through a chaotic cavity (a ``quantum dot'') and through the interface between
a normal metal and a superconductor.

31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol