Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Theoretical elucidation of possibility of Majorana modes in a two
  dimensional Dirac system   Here we present the theoretical clarification of possibility of eight
Majorana-like modes (quasi-particles which are self-conjugate) close to the
experimentally inaccessible Dirac points of a two-dimensional monolayer Dirac
system. The valley-mixing and the spin-degeneracy lifting are the main
requirements. These are possible by wedging in the requisite ingredients in the
description, viz. the atomically sharp scatterers and the strong spin-orbit
coupling (SOC). The latter can possibly be achieved in graphene folding a
sheet; the higher curvature of deformations correspond to stronger values of
the coupling. In silicene, the buckled structure of the system generates a
staggered sub-lattice potential between silicon atoms at A sites and B sites
for an applied electric field perpendicular to its plane. The stronger SOC in
silicene has its origin also in the buckled structure of the system. Tuning of
electric field, allows for rich behavior varying from a topological insulator
to a normal insulator with a valley spin-polarized metal (VSPM) at a critical
value in between. The VSPM stage is characterized by the valley-spin locking,
i.e. the opposite spin polarization at different valleys. We shall see that in
this phase, if the inter-valley scattering process and the real spin-flip
process in moderation are allowed to take place, we have the right condition
for capturing Majoranas in the proximity of a s-wave superconductor.

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The categories of this paper are: nucl-th
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
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The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex