Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multistable transport regimes and conformational changes in molecular
  quantum dots   We analyse non-equilibrium transport properties of a single-state molecular
quantum dot coupled to a local phonon and contacted by two electrodes. We
derive the effective non-equilibrium (Keldysh) action for the phonon mode and
study the structure of the saddle points, which turn out to be symmetric with
respect to time inversion. Above a critical electron-phonon coupling lambda_c
the effective potential for the phonon mode develops two minima in the
equilibrium and three minima in the case of a finite bias voltage. For strongly
interacting Luttinger liquid leads lambda_c=0. Some implications for transport
experiments on molecular quantum dots are discussed.

1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
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The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat