Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Realizing Topological Superconductivity with Superlattices   The realization of topological superconductors (SCs) in one or two dimensions
is a highly pursued goal. Prominent proposed realization schemes include
semiconductor/superconductor heterostructures and set stringent constraints on
the chemical potential of the system. However, the ability to keep the chemical
potential in the required range while in the presence of an adjacent SC and its
accompanied screening effects, is a great experimental challenge. In this work,
we study a SC lattice structure in which the SC is deposited periodically on a
one- or two-dimensional sample. We demonstrate that this realization platform
overcomes the challenge of controlling the chemical potential in the presence
of the superconductor's electrostatic screening. We show how Majorana bound
states emerge at the ends of a one-dimensional system proximity coupled to a
one-dimensional SC lattice, and move on to present a SC-lattice-based
realization of the two-dimensional px+ipy SC, hosting chiral Majorana modes at
its edges. In particular, we establish that even when assuming the worst case
of absolute screening, in which the chemical potential under the SC is
completely unaffected by the external gate potential, the topological phase can
be reached by tuning the chemical potential in the area not covered by the SC.
Finally, we briefly discuss possible effects of Coulomb blockade on the
properties of the system.

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The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
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The categories of this paper are: nlin
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The categories of this paper are: dg-ga
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The categories of this paper are: physics
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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
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The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
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The categories of this paper are: hep-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: alg-geom
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The categories of this paper are: plasm-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: q-bio