Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Intra- and inter-shell Kondo effects in carbon nanotube quantum dots   The linear response transport properties of carbon nanotube quantum dot in
the strongly correlated regime are discussed. The finite-U mean field slave
boson approach is used to study many-body effects. Magnetic field can rebuilt
Kondo correlations, which are destroyed by the effect of spin-orbit interaction
or valley mixing. Apart from the field induced revivals of SU(2) Kondo effects
of different types: spin, valley or spin-valley, also more exotic phenomena
appear, such as SU(3) Kondo effect. Threefold degeneracy occurs due to the
effective intervalley exchange induced by short-range part of Coulomb
interaction or due to the intershell mixing. In narrow gap nanotubes the full
spin-orbital degeneracy might be recovered in the absence of magnetic field
opening the condition for a formation of SU(4) Kondo resonance.

28
The categories of this paper are: alg-geom
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
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The categories of this paper are: comp-gas
16
The categories of this paper are: stat
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat