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Structured-Pump-Enabled Quantum PatternRecognition Xiaodong QiuDongkai ZhangWuhong Zhang2019 год

Structured-Pump-Enabled Quantum Pattern Recognition
статья из журнала

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Аннотация: We report a new scheme of ghost imaging by using a spatially structured pump in the Fourier domain of spontaneous parametric down-conversion for quantum-correlation-based pattern recognition. We exploit the mathematical feature of Laguerre-Gaussian mode's Fourier transform to describe the pump-modulated formation of a ghost image. Of particular interest is the experimental demonstration of a quantum equivalence of a Vander Lugt filter, based on which the nonlocal spiral phase contrast for vortex mapping and quantum-correlation-based human face recognition are implemented successfully. The photons used for probing a test object, scanning the database, and producing a correlation signal can belong to three different light beams, which suggests some security applications where low-light-level illumination and covert operation are desired.Received 7 October 2018DOI:https://doi.org/10.1103/PhysRevLett.122.123901© 2019 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasQuantum correlations in quantum informationTechniquesGhost imagingImaging & optical processingAtomic, Molecular & OpticalQuantum Information
Год издания: 2019
Авторы: Xiaodong Qiu, Dongkai Zhang, Wuhong Zhang, Lixiang Chen
Издательство: American Physical Society
Источник: Physical Review Letters
Ключевые слова: Random lasers and scattering media, Orbital Angular Momentum in Optics, Quantum Information and Cryptography
Другие ссылки: Physical Review Letters (HTML)
PubMed (HTML)