Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Surface states around a vortex in topological superconductors:
  Intersection of a surface and a vortex   We numerically show that the zero-energy Majorana surface states are
suppressed around a vortex in the three-dimensional topological superconductors
such as Cu$_{x}$Bi$_{2}$Se$_{3}$ and Sn$_{1-x}$In$_{x}$Te. On the other hand,
the zero-energy Majorana bound states along the vortex line are robust against
cut by the surface. The suppression of the surface bound states is similar to
that with a magnetic impurity on the surface of the topological insulator. The
suppression of the surface-bound states around a vortex can be observed as the
unconventional energy dependence of imaging of the scanning tunneling
microscopy/spectroscopy.

23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin