Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantum dot Rabi rotations beyond the weak exciton-phonon coupling
  regime   We study the excitonic dynamics of a driven quantum dot under the influence
of a phonon environment, going beyond the weak exciton-phonon coupling
approximation. By combining the polaron transform and time-local projection
operator techniques we develop a master equation that can be valid over a much
larger range of exciton-phonon coupling strengths and temperatures than the
standard weak-coupling approach. For the experimentally relevant parameters
considered here, we find that the weak-coupling and polaron theories give very
similar predictions for low temperatures (below 30 K), while at higher
temperatures we begin to see discrepancies between the two. This is due to the
fact that, unlike the polaron approach, the weak-coupling theory is incapable
of capturing multiphonon effects, while it also does not properly account for
phonon-induced renormalisation of the driving frequency. In particular, we find
that the weak-coupling theory often overestimates the damping rate when
compared to that predicted by the polaron theory. Finally, we extend our theory
to include non-Markovian effects and find that, for the parameters considered
here, they have little bearing on the excitonic Rabi rotations when plotted as
a function of pulse area.

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The categories of this paper are: hep-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: nlin
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The categories of this paper are: econ
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The categories of this paper are: math-ph
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The categories of this paper are: eess
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The categories of this paper are: q-alg
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The categories of this paper are: stat
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: physics
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The categories of this paper are: patt-sol
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The categories of this paper are: ao-sci
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The categories of this paper are: chem-ph
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The categories of this paper are: nucl-th