Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Crossed Andreev reflection in spin-polarized chiral edge states due to
  Meissner effect   We consider a hybrid quantum Hall-superconductor system, where a
superconducting finger with oblique profile is wedged into a two-dimensional
electron gas in the presence of a perpendicular magnetic field, as considered
by Lee $\textit{et al.}$, Nat. Phys. 13, 693 (2017). The electron gas is in the
quantum Hall regime at filling factor $\nu=1$. Due to the Meissner effect, the
perpendicular magnetic field close to the quantum Hall-superconductor boundary
is distorted and gives rise to an in-plane component of the magnetic field.
This component enables non-local crossed Andreev reflection between the
spin-polarized chiral edge states running on opposite sides of the
superconducting finger, thus opening a gap in the spectrum of the edge states
without the need of spin-orbit interaction or non-trivial magnetic textures. We
compute numerically the transport properties of this setup and show that a
negative resistance exists as consequence of non-local Andreev processes. We
also obtain numerically the zero-energy local density of states, which
systematically shows peaks stable to disorder. The latter result is compatible
with the emergence of Majorana bound states.

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The categories of this paper are: mtrl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
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The categories of this paper are: plasm-ph
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The categories of this paper are: supr-con
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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-ex
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The categories of this paper are: stat
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: ao-sci
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The categories of this paper are: cs
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The categories of this paper are: funct-an