Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interaction-induced negative differential resistance in asymmetric
  molecular junctions   Combining insights from quantum chemistry calculations with master equations,
we discuss a mechanism for negative differential resistance (NDR) in molecular
junctions, operated in the regime of weak tunnel coupling. The NDR originates
from an interplay of orbital spatial asymmetry and strong electron-electron
interaction, which causes the molecule to become trapped in a non-conducting
state above a voltage threshold. We show how the desired asymmetry can be
selectively introduced in individual orbitals in e.g., OPE-type molecules by
functionalization with a suitable side group, which is in linear conjugation to
one end of the molecule and cross-conjugated to the other end.

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The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org