Determinstic Generation of a Quantum Dot-Confined Triexciton and its Radiative Decay via Three-Photon Cascade

Abstract

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.

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References in corpus (3)

• Entangled Photon Pairs from Semiconductor Quantum Dots
• Improved fidelity of triggered entangled photons from single quantum dots
• Polarization sensitive spectroscopy of charged Quantum Dots

Cited by in corpus (6)

• Deterministic Generation of a Cluster State of Entangled Photons
• Deterministically Fabricated Solid-State Quantum-Light Sources
• All-Optical Depletion of Dark Excitons from a Semiconductor Quantum Dot
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• High-dimensional acousto-optoelectric correlation spectroscopy reveals coupled carrier dynamics in polytypic nanowires
• Squeezed relic photons beyond the horizon