Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Polaronic transport through molecular quantum dots: charging-induced NDR
  and rectifying behavior   Here we study the polaronic transport through molecules weakly connected to
metallic electrodes in the nonlinear response regime. Molecule itself is
treated as a quantum dot with discrete energy levels, its connection to the
electrodes is described within the wide-band approximation, while the charging
is incorporated by means of the self-consistent potential. Nonperturbative
computational scheme, used in this work, is based on the Green's function
theory within the framework of mapping technique (GFT-MT). This method
transforms the many-body electron-phonon interaction problem into a one-body
multi-channel single-electron scattering problem with occupation of polaron
levels calculated in the self-consistent way. In particular, three different
phenomena as a result of charging in polaronic transport via discrete quantum
states are discussed in detail: the suppression of the current at higher
voltages, negative differential resistance (NDR effect), and rectification.

13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess
18
The categories of this paper are: econ
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg