Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of charge-dependent vibrational frequencies and anharmonicities
  in transport through molecules   As a step towards a more realistic modeling of vibrations in single-molecule
devices, we investigate the effects of charge-dependent vibrational frequencies
and anharmonic potentials on electronic transport. For weak phonon relaxation,
we find that in both cases vibrational steps split into a multitude of
substeps. This effectively leads to a bias-dependent broadening of vibrational
features in current-voltage and conductance characteristics, which provides a
fingerprint of nonequilibrium vibrations whenever other broadening mechanisms
are secondary. In the case of an asymmetric molecule-lead coupling, we observe
that frequency differences can also cause negative differential conductance.

28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex