Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-diffusion theory of weak localization in graphene   We put forward a theory of the weak localization in two dimensional graphene
layers which explains experimentally observable transition between positive and
negative magnetoresistance. Calculations are performed for the whole range of
classically weak magnetic field with account on intervalley transitions.
Contribution to the quantum correction which stems from closed trajectories
with few scatterers is carefully taken into account. We show that intervalley
transitions lead not only to the transition from weak antilocalization to the
weak localization, but also to the non-monotonous dependence of the
conductivity on the magnetic field.

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The categories of this paper are: chao-dyn
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg