Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Energy transport in stochastically perturbed lattice dynamics   We consider lattice dynamics with a small stochastic perturbation of order
&#949; and prove that for a space-time scale of order \varepsilon\^-1 the local
spectral density (Wigner function) evolves according to a linear transport
equation describing inelastic collisions. For an energy and momentum conserving
chain the transport equation predicts a slow decay, as 1/\sqrt{t}, for the
energy current correlation in equilibrium. This is in agreement with previous
studies using a different method.

24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
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The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
8
The categories of this paper are: hep-ex