Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scanning-gate-induced effects in nonlinear transport through
  nanostructures   We investigate the effect of a scanning gate tip in the nonlinear quantum
transport properties of nanostructures. Generally, we predict that the symmetry
of the current-voltage characteristic in reflection-symmetric samples is broken
by a tip-induced rectifying conductance correction. Moreover, in the case of a
quantum point contact (QPC), the tip-induced rectification term becomes
dominant as compared to the change of the linear conductance at large tip-QPC
distances. Calculations for a weak tip probing a QPC modeled by an abrupt
constriction show that these effects are experimentally observable.

11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
2
The categories of this paper are: math
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom