Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mesoscopic conductance fluctuations in graphene samples   Mesoscopic conductance fluctuations in graphene samples at energies not very
close to the Dirac point are studied analytically. We demonstrate that the
conductance variance $<[\delta G]^2>$ is very sensitive to the elastic
scattering breaking the valley symmetry. In the absence of such scattering
(disorder potential smooth at atomic scales, trigonal warping negligible), the
variance $<[\delta G]^2 > = 4 < [\delta G]^2 >_\text{metal}$ is four times
greater than that in conventional metals, which is due to the two-fold valley
degeneracy. In the absence of intervalley scattering, but for strong
intravalley scattering and/or strong warping $<[\delta G]^2 > =2 < [\delta G]^2
>_\text{metal}$. Only in the limit of strong intervalley scattering $<[\delta
G]^2 > = < [\delta G]^2 >_\text{metal}$. Our theory explains recent numerical
results and can be used for comparison with existing experiments.

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The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom