Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin Current Through a Magnetic-Oscillating Quantum Dot   Non-equilibrium spin transport through an interacting quantum dot is
analyzed. The coherent spin oscillations in the dot provide a generating source
for spin current. In the interacting regime, the Kondo effect is influenced in
a significant way by the presence of the precessing magnetic field. In
particular, when the precession frequency is tuned to resonance between spin up
and spin down states of the dot, Kondo singularity for each spin splits into a
superposition of two resonance peaks. The Kondo-type cotunneling contribution
is manifested by a large enhancement of the pumped spin current in the strong
coupling, low temperature regime.

31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
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The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat