Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Using low moments of the Liouvillian to calculate mode lifetimes in low
  dimensional models   A recent proposal for practical calculation of vibrational mode lifetimes is
tested on simple, low-dimensional anharmonic models. The proposed scheme
approximates the mode lifetime in terms of ensemble averages of specific
functions in phase-space; various levels of approximation correspond to
ensemble moments of the Liouvillian. It is shown that, for systems where the
vibrational density of states is well-approximated by a single broadened peak,
the fourth-moment approximation works well over the full range of temperature.

31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin