Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Conduction, diffusion and noise of electrons in amorphous chalcogenides
  at low electric fields   The low-field electron diffusion, noise, and the conduction in amorphous
chalcogenides are investigated by means of a Monte Carlo implementation of a
full three- dimensional variable-range hopping transport model between
localized states. Quantities like the carrier-velocity autocorrelation
function, the noise power spectrum, the diffusion coefficient and the ohmic
conductivity are obtained from numerical simulations at room temperatures and
lower. Some interesting features of the linear-response regime typical of
hopping transport are observed and discussed for the case of the amorphous
Ge2Sb2Te5.

23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs