Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Renormalization effects in interacting quantum dots coupled to
  superconducting leads   We study subgap transport through an interacting quantum dot tunnel coupled
to one normal and two superconducting leads. To check the reliability of an
approximation of an infinitely-large gap $\Delta$ in the superconducting leads
and weak tunnel coupling to the normal lead, we perform a $1/\Delta$ expansion,
and we analyze next-to-leading order corrections in the tunnel coupling to the
normal lead. Furthermore, we propose a resummation approach to calculate the
Andreev bound states for finite $\Delta$. The results are substantially more
accurate than those obtained by mean-field treatments and favorably compare
with numerical exact results.

20
The categories of this paper are: acc-phys
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat