Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mass-like gap creation by mixed singlet and triplet state in
  superconducting topological insulator   We investigate proximity-induced mixed spin-singlet and spin-triplet
superconducting state on the surface states of a topological insulator. Such
hybrid structure features fundamentally distinct electron-hole excitations and
resulting effective superconducting subgap. Studying the particle-hole and
time-reversal symmetry properties of the mixed state Dirac-Bogoliubov-de Gennes
effective Hamiltonian gives rise to manifesting possible topological phase
exchange of surface states, since the mixed-spin channels leads to appearance
of a band gap on the surface states. This is verified by determining
topological invariant winding number for chiral eigenstates, which is achieved
by introducing a chiral symmetry operator. We interestingly find the role of
mixed superconducting state as creating a mass-like gap in topological
insulator by means of introducing new mixed-spin channels $\Delta_1$ and
$\Delta_2$. The interplay between superconducting spin-singlet and triplet
correlations actually results in gaped surface states, where the size of gap
can be controlled by tuning the relative $s$ and $p$-waves pairing potentials.
We show that the system is in different topology classes by means of chiral and
no-chiral spin-triplet symmetry. In addition, the resulting effective
superconductor subgap manipulated at the Fermi surface presents a complicated
dependency on mixed-spin channels. Furthermore, we investigate the resulting
subgap tunneling conductance in N/S and Josephson current in S/I/S junctions to
unveil the influence of effective symmetry of mixed superconducting gap. The
results can pave the way to realize the effective superconducting gap in
noncentrosymmetric superconductors with mixed-spin state.

28
The categories of this paper are: alg-geom
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin