Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effects of the contacts on shot noise in graphene nano-ribbons   We investigate the shot noise of an impurity-free graphene flake as a
function of the chemical potential. For large width to length ratios, this
noise has been predicted and observed to exhibit universal characteristics at
the Dirac point. Furthermore, a sharp decrease of the shot noise with
increasing carrier density has been predicted. This decrease has also been
observed in experiments, but with much smaller slope than predicted. We
reconcile this discrepancy between theory and experiment by including the
effects of the contacts to the graphene ribbon.

2
The categories of this paper are: math
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat