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RESEARCH PRODUCT
Suppression law of quantum states in a 3D photonic fast Fourier transform chip
Niko ViggianielloFabio SciarrinoRoberta RamponiRoberta RamponiPaolo MataloniAndrea CrespiMarco BentivegnaNicolò SpagnoloLuca InnocentiRoberto OsellameRoberto OsellameFulvio Flaminisubject
Genetics and Molecular Biology (all)Photonquantum opticScienceFast Fourier transformintegrated photonics; quantum information; linear optics; FourierphotonicsGeneral Physics and AstronomyPhysics::Optics02 engineering and technologyInterference (wave propagation)01 natural sciencesBiochemistryGeneral Biochemistry Genetics and Molecular BiologySettore FIS/03 - Fisica Della MateriaArticlesymbols.namesakequantumPhysics and Astronomy (all)OpticsQuantum statequantum information0103 physical sciencesboson samplingquantum opticsQuantum information010306 general physicsIntegrated photonic circuitsPhysicsQuantum opticsMultidisciplinaryphotonicbusiness.industryQChemistry (all)General Chemistry021001 nanoscience & nanotechnologyquantum computerFourier transformLawBiochemistry Genetics and Molecular Biology (all); Chemistry (all); Physics and Astronomy (all)symbolsPhotonics0210 nano-technologybusinessdescription
The identification of phenomena able to pinpoint quantum interference is attracting large interest. Indeed, a generalization of the Hong–Ou–Mandel effect valid for any number of photons and optical modes would represent an important leap ahead both from a fundamental perspective and for practical applications, such as certification of photonic quantum devices, whose computational speedup is expected to depend critically on multi-particle interference. Quantum distinctive features have been predicted for many particles injected into multimode interferometers implementing the Fourier transform over the optical modes. Here we develop a scalable approach for the implementation of the fast Fourier transform algorithm using three-dimensional photonic integrated interferometers, fabricated via femtosecond laser writing technique. We observe the suppression law for a large number of output states with four- and eight-mode optical circuits: the experimental results demonstrate genuine quantum interference between the injected photons, thus offering a powerful tool for diagnostic of photonic platforms.
year | journal | country | edition | language |
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2015-07-27 |