Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optical conductivity of single-layer graphene induced by temporal
  mass-gap fluctuations   We consider the dynamics of charge carriers in single-layer graphene that are
subject to random temporal fluctuations of their mass gap. The optical
conductivity is calculated by incorporating the quantum-stochastic time
evolution into the standard linear-response (Kubo) theory. We find that, for an
intermediate range of frequencies below the average gap size, electron
transport is enhanced by fluctuations. At the same time, in the limit of high
as well as low frequencies, the conductivity is suppressed as the variance of
gap fluctuations increases. In particular, the dc conductivity is always
suppressed by a random temporal mass with nonvanishing mean value and vanishes
in the zero-temperature limit. Our results are complementary to those obtained
recently for static random-gap disorder in finite-size systems.

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The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
2
The categories of this paper are: math
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an