Search results for "quantum state tomography"

showing 2 items of 2 documents

Synchronization of optical photons for quantum information processing

2015

We observe the Hong-Ou-Mandel interference via homodyne tomography on two photons extracted from two quantum memories.

PhotonFOS: Physical sciencesquantum memory02 engineering and technology01 natural scienceshomodyne measurementOpticsquantum state tomographySpontaneous parametric down-conversionparametric down conversion0103 physical sciencesQuantum information processingWigner distribution functionWigner functionHumansHong–Ou–Mandel effectquantum optics010306 general physicsResearch ArticlesQuantum opticsPhysicsQuantum PhysicsHong-Ou-Mandel effectPhotonsMultidisciplinaryconcatenated cavitybusiness.industrySciAdv r-articlesOpticsQuantum tomographyModels Theoretical021001 nanoscience & nanotechnologyQubitQuantum Theorysingle photonPhotonicsQuantum Physics (quant-ph)0210 nano-technologybusinessResearch ArticleScience Advances
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Time-energy filtering of single electrons in ballistic waveguides

2019

Characterizing distinct electron wave packets is a basic task for solid-state electron quantum optics with applications in quantum metrology and sensing. A important circuit element for this task is a non-stationary potential barrier than enables backscattering of chiral particles depending on their energy and time of arrival. Here we solve the quantum mechanical problem of single-particle scattering by a ballistic constriction in an fully depleted quantum Hall system under spatially uniform but time-dependent electrostatic potential modulation. The result describes electrons distributed in time-energy space according to a modified Wigner quasiprobability distribution and scattered with an …

PhysicsQuantum opticsCondensed Matter - Mesoscale and Nanoscale PhysicsWigner quasiprobability distributionWave packet500 Naturwissenschaften und Mathematik::530 Physik::530 PhysikGeneral Physics and AstronomyFOS: Physical sciencesElectronQuantum tomographyQuantum Hall effect01 natural sciences530010305 fluids & plasmasComputational physicsquantum state tomography0103 physical sciencesMesoscale and Nanoscale Physics (cond-mat.mes-hall)time-dependent scatteringQuantum metrologyWigner distribution functionelectron quantum optics010306 general physicssingle-electron devices
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