Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-channel Kondo physics in a periodically driven single-impurity
  Anderson model   We investigate a quantum dot (Anderson impurity) coupled to metallic leads,
with a time-periodic voltage bias across the device. Using a time-dependent
Schrieffer-Wolff transformation, we show that the Floquet Hamiltonian of the
model can be mapped onto a two-channel Kondo model, in which the impurity is
screened by separate conduction bands corresponding to parity-even and odd
superpositions of the metallic leads. By changing the frequency and amplitude
of the perturbation, one can tune the system to a quantum critical point with
symmetric coupling of the impurity to both channels. For the understanding of
the driven state, energy absorption from the drive must be considered: Although
the absorption at the impurity is balanced by the energy flow into the
conduction band, locally it leads to non-thermal distribution functions which
can have a detrimental effect on the Kondo physics. However, a numerical
simulation demonstrates that the absorption can be systematically suppressed at
a fixed value of the induced couplings by increasing the frequency, so that the
time-averaged dynamics in the driven one-channel Anderson model can be used to
study the critical behavior of the two-channel model.

20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
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The categories of this paper are: solv-int
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The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
33
The categories of this paper are: plasm-ph
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The categories of this paper are: cmp-lg
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The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph