Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topological nature of in-gap bound states in disordered large-gap
  monolayer transition metal dichalcogenides   We propose a physical model based on disordered (a hole punched inside a
material) monolayer transition metal dichalcogenides (TMDs) to demonstrate a
large-gap quantum valley Hall insulator. We find an emergence of bound states
lying inside the bulk gap of the TMDs. They are strongly affected by
spin-valley coupling, rest- and kinetic- mass terms and the hole size. In
addition, in the whole range of the hole size, at least two in-gap bound states
with opposite angular momentum, circulating around the edge of the hole, exist.
Their topological insulator (TI) feature is analyzed by the Chern number,
characterized by spacial distribution of their probabilities and confirmed by
energy dispersion curves (Energy vs. angular momentum). It not only sheds light
on overcoming low-temperature operating limitation of existing narrow-gap TIs,
but also opens an opportunity to realize valley- and spin- qubits.

2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an