Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Current noise, electron-electron interactions, and quantum interference   It is shown that electron-electron interactions lead to a novel
quantum-interference contribution to non-equilibrium current noise in
mesoscopic conductors. The corresponding noise spectrum is obtained in detail
for diffusive systems. It is found to be quadratic in the applied voltage and
to exhibit a power-law frequency spectrum whose exponent depends on the
dimensionality of the sample.

16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph