Journal
APPLIED PHYSICS LETTERS
Volume 112, Issue 7, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.5015951
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Funding
- Delegation Generale de l'Armement
- Agence Nationale de la Recherche
- Region Ile-de-France in the framework of the C'Nano DIM NanoK (project SPATIAL)
- Fondation Franco-Chinoise pour les Sciences et Applications (FFCSA)
- European Research Council (ERC) through the Ganoms Project [306664]
- French RENATECH network
- EU via an ERC
- UK Engineering and Physical Sciences Research Council [EP/K034480/1]
- EPSRC NQIT Quantum Technology Hub
- Engineering and Physical Sciences Research Council [EP/K034480/1] Funding Source: researchfish
- European Research Council (ERC) [306664] Funding Source: European Research Council (ERC)
- EPSRC [EP/K034480/1] Funding Source: UKRI
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We demonstrate a monolithic III-V photonic circuit combining a heralded single photon source with a beamsplitter, at room temperature and telecom wavelength. Pulsed parametric down-conversion in an AlGaAs waveguide generates counterpropagating photons, one of which is used to herald the injection of its twin into the beamsplitter. We use this configuration to implement an integrated Hanbury-Brown and Twiss experiment, yielding a heralded second-order correlation g(her)((2))(0) = 0.10 +/- 0.02 that confirms single-photon operation. The demonstrated generation and manipulation of quantum states on a single III-V semiconductor chip opens promising avenues towards real-world applications in quantum information. Published by AIP Publishing.
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