Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chaos, interactions, and nonequilibrium effects in the tunneling
  resonance spectra of small metallic particles   We explain the observation of clusters in the tunneling resonance spectra of
small metallic particles of few nanometer size. Each cluster of resonances is
identified with one excited single--electron state of the metal particle,
shifted as a result of the different nonequilibrium occupancy configurations of
the other single--electron states. Assuming the underlying classical dynamics
of the electrons to be chaotic, we determine the typical shift to be $\Delta/g$
where $g$ is the dimensionless conductance of the grain.

16
The categories of this paper are: stat
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg