Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Does the potential energy landscape of a supercooled liquid resemble a
  collection of traps?   It is analyzed whether the potential energy landscape of a glass-forming
system can be effectively mapped on a random model which is described in
statistical terms. For this purpose we generalize the simple trap model of
Bouchaud and coworkers by dividing the total system into M weakly interacting
identical subsystems, each being described in terms of a trap model. The
distribution of traps in this extended trap model (ETM) is fully determined by
the thermodynamics of the glass-former. The dynamics is described by two
adjustable parameters, one characterizing the common energy level of the
barriers, the other the strength of the interaction. The comparison is
performed for the standard binary mixture Lennard-Jones system with 65
particles. The metabasins, identified in our previous work, are chosen as
traps. Comparing molecular dynamics simulations of the Lennard-Jones system
with Monte Carlo calculations of the ETM allows one to determine the adjustable
parameters. Analysis of the first moment of the waiting distribution yields an
optimum agreement when choosing M=3 subsystems. Comparison with the second
moment of the waiting time distribution, reflecting dynamic heterogeneities,
indicates that the sizes of the subsystems may fluctuate.

19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci