Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effective Hamiltonian for electron waves in artificial graphene: A first
  principles derivation   We propose a first principles effective medium formalism to study the
propagation of electron waves in semiconductor heterostructures with a
zero-band gap. Our theory confirms that near the K-point the dynamics of a
two-dimensional electron gas modulated by an external electrostatic potential
with honeycomb symmetry is described by the same pseudospinor formalism and
Dirac massless equation as a graphene monolayer. Furthermore, we highlight that
even though other superlattices based on semiconductors with a zincblende-type
structure can have a zero band-gap and a linear energy-momentum dispersion, the
corresponding effective medium Hamiltonian is rather different from that of
graphene, and can be based on a single-component wavefunction.

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The categories of this paper are: atom-ph
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The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
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The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph