Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum impurity in the bulk of topological insulator   We investigate physical properties of an Anderson impurity embedded in the
bulk of a topological insulator. The slave-boson mean-field approximation is
used to account for the strong electron correlation at the impurity. Different
from the results of a quantum impurity on the surface of a topological
insulator, we find for the band-inverted case, a Kondo resonant peak and in-gap
bound states can be produced simultaneously. However, only one type of them
appears for the normal case. It is shown that the mixed-valence regime is much
broader in the band-inverted case, while it shrinks to a very narrow regime in
the normal case. Furthermore, a self-screening of the Kondo effect may appear
when the interaction between the bound-state spin and impurity spin is taken
into account.

8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an