Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Infrared absorption of closely-aligned heterostructures of monolayer and
  bilayer graphene with hexagonal boron nitride   We model optical absorption of monolayer and bilayer graphene on hexagonal
boron nitride for the case of closely-aligned crystal lattices. We show that
perturbations with different spatial symmetry can lead to similar absorption
spectra. We suggest that a study of the absorption spectra as a function of the
doping for almost completely full first miniband is necessary to extract
meaningful information about the moire characteristics from optical absorption
measurements and to distinguish between various theoretical proposals for the
physically realistic interaction. Also, for bilayer graphene, the ability to
compare spectra for the opposite signs of electric-field-induced interlayer
asymmetry might provide additional information about the moire parameters.

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The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin