Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Aharonov-Bohm interference as a probe of Majorana fermions   Majorana fermions act as their own antiparticle, and they have long been
thought to be confined to the realm of pure theory. However, interest in them
has recently resurfaced, as it was realized through the work of Kitaev that
some experimentally accessible condensed matter systems can host these exotic
excitations as bound states on the boundaries of 1D chains, and that their
topological and non-abelian nature holds promise for quantum computation.
Unambiguously detecting the experimental signatures of Majorana bound states
has turned out to be challenging, as many other phenomena lead to similar
experimental behaviour. Here, we computationally study a ring comprised of two
Kitaev model chains with tunnel coupling between them, where an applied
magnetic field allows for Aharonov-Bohm interference in transport through the
resulting ring structure. We use a non-equilibrium Green's function technique
to analyse the transport properties of the ring in both the presence and
absence of Majorana zero modes. Further, we show that these results are robust
against weak disorder in the presence of an applied magnetic field. This
computational model suggests another signature for the presence of these
topologically protected bound states can be found in the magnetic field
dependence of devices with loop geometries.

11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci