Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Semiclassical modeling of coupled quantum dot-cavity systems: From
  polariton-like dynamics to Rabi oscillations   Semiconductor quantum dots in photonic cavities are strongly coupled
light-matter systems with prospective applications in optoelectronic devices
and quantum information processing. Here we present a theoretical study of the
coupled exciton--light field dynamics of a planar quantum dot ensemble, treated
as two-level systems, embedded in a photonic cavity modeled by Maxwell's
equations. When excited by coupling an external short laser pulse into the
cavity, we find an exciton-polariton-like behavior for weak excitation and Rabi
oscillations for strong excitation with a sharp transition between these
regimes. In the transition region we find highly non-linear dynamics involving
high harmonics of the fundamental oscillation. We perform a numerical study
based on the Finite-Difference-Time-Domain method for the solution of Maxwell's
equations coupled to Bloch equations for the quantum dots and also derive an
analytical model to describe the coupled cavity-quantum dot system, which
allows us to describe the light field dynamics in terms of a Newton-like
dynamics in an effective anharmonic potential. From the shape of this potential
combined with the initial conditions the transition can be well understood. The
model is then extended to a broadened ensemble of quantum dots. For weak
excitation the polariton spectrum broadens and the lines slightly shift,
however, the sharp transition to the Rabi oscillation regime is still present.
Furthermore, we find a second, lower threshold with additional lines in the
spectra which can be traced back to Rabi oscillations driven by the polariton
modes. Our approach provides new insights in the dynamics of both quantum dot
and light field in the photonic structure.

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The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc