Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Conductivity and scattering in graphene bilayers: numerically exact
  results vs. Boltzmann approach   We derive analytical expressions for the conductivity of bilayer graphene
(BLG) using the Boltzmann approach within the the Born approximation for a
model of Gaussian disorders describing both short- and long-range impurity
scattering. The range of validity of the Born approximation is established by
comparing the analytical results to exact tight-binding numerical calculations.
A comparison of the obtained density dependencies of the conductivity with
experimental data shows that the BLG samples investigated experimentally so far
are in the quantum scattering regime where the Fermi wavelength exceeds the
effective impurity range. In this regime both short- and long-range scattering
lead to the same linear density dependence of the conductivity. Our
calculations imply that bilayer and single layer graphene have the same
scattering mechanisms. We also provide an upper limit for the effective,
density dependent spatial extension of the scatterers present in the
experiments.

8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg