Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Majorana fermions from Shiba states in an antiferromagnetic chain on top
  of a superconductor   We propose a new mechanism for topological superconductivity based on an
antiferromagnetically ordered chain of magnetic atoms on the surface of a
conventional superconductor. In a weak Zeeman field, a supercurrent in the
substrate generates a staggered spin-current, which converts the preexisting
topologically-unprotected Shiba states into Majorana fermions (MFs). The two
experimental knobs can be finely tuned providing a platform with enhanced
functionality for applications. Remarkably, the electronic spin-polarization of
the arising edge MF wavefunctions depends solely on the parity of the number of
magnetic moments, which can serve as a distinctive signature of the MFs. We
introduce the basic concepts within a minimal model and make contact with
experiments by a microscopic analysis based on the Shiba states.

28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas