Abstract
We show that the two-photon transition rates of quantum dots coupled to nanocavities are enhanced by up to several orders of magnitude relative to quantum dots in bulk host. We then propose how to take advantage of this enhancement to implement coherent quantum-dot excitation by two-photon absorption, entangled photon pair generation by two-photon spontaneous emission, and single-photon generation at telecom wavelengths by two-photon stimulated and spontaneous emission.
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