Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Determinstic Generation of a Quantum Dot-Confined Triexciton and its
  Radiative Decay via Three-Photon Cascade   Semiconductor quantum dots (QDs) have potential applications in quantum
information processing due to the fact that they are potential on-demand
sources of single and entangled photons. Generation of polarization-entangled
photon pairs was demonstrated using the biexciton-exciton radiative cascade.
One obvious way to increase the number of quantum correlated photons that the
QDs emit is to use higher-order multiexcitons, in particular the triexciton.
Towards achieving this goal, we first demonstrate deterministic generation of
the QD-confined triexciton in a well-definedcoherent state and then spectrally
identify and directly measure a three-photon radiative cascade resulting from
the sequential triexciton-biexciton-exciton radiative recombination.

22
The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin