Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topological superconductivity in Quantum Hall-superconductor hybrid
  systems   We develop a scenario to engineer a topological phase with Majorana edge
states based on an integer quantum Hall (QH) system proximity coupled to a
superconductor (SC). Due to the vortices in the SC order parameter, the SC - QH
hybrid system is described by a Bloch problem with ten unpaired momenta,
corresponding to the maxima and saddle points of the SC order parameter. For
external potentials respecting the symmetry of the vortex lattice, the states
with unpaired momenta have degeneracies such that the system always is in a
trivial phase. However, an incommensurate potential can lift the degeneracies
and drive the system into a topologically nontrivial phase.

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The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio