Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strongly coupled single quantum dot in a photonic crystal waveguide
  cavity   Cavities embedded in photonic crystal waveguides offer a promising route
towards large scale integration of coupled resonators for quantum
electrodynamics applications. In this letter, we demonstrate a strongly coupled
system formed by a single quantum dot and such a photonic crystal cavity. The
resonance originating from the cavity is clearly identified from the
photoluminescence mapping of the out-of-plane scattered signal along the
photonic crystal waveguide. The quantum dot exciton is tuned towards the cavity
mode by temperature control. A vacuum Rabi splitting of ~ 140 \mueV is observed
at resonance.

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The categories of this paper are: patt-sol
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The categories of this paper are: nucl-ex
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The categories of this paper are: stat
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The categories of this paper are: solv-int
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The categories of this paper are: alg-geom
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The categories of this paper are: econ
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The categories of this paper are: hep-lat
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The categories of this paper are: q-alg
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The categories of this paper are: atom-ph
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The categories of this paper are: hep-th
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The categories of this paper are: gr-qc
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The categories of this paper are: nlin
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The categories of this paper are: math-ph
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
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The categories of this paper are: comp-gas