Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Transport in a mesoscopic ring with a quantum dot: from the Coulomb
  blockade regime to the Kondo effect   The system described in this work consists of a quantum dot inserted in a
mesoscopic ring threaded by a magnetic flux. Our aim is to present a complete
description for this device and to predict the physics of a experiment with
these features.
  We have proposed a model that takes into account the conditions that are
usual in experiments with quantum dots and mesoscopic systems. In order to
solve the model, we develop a methodology to find the Green's functions of the
system by means of proper approximations.
  This system presents persistent currents as a function of a gate potential
applied to the quantum dot. We have studied the influence of both the
interaction between electrons and the hybridization between the ring and the
dot. We have found several regimes that describe different physical phenomena
involved in the system. These regimes range from the phenomenon of Coulomb
Blockade (in the high correlation limit) to a quasi non interacting regime.
Between these two limits we have found an intermediate regime where the Kondo
effect shows up.

33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org