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Quantum Interference Enables Constant-Time Quantum Information Processing

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WARSAW, Poland, July 23, 2019 — Quantum interference can be used to process large data sets quickly and accurately, according to a study done by the University of Warsaw, in collaboration with the University of Oxford and NIST. The researchers showed that a simple quantum gate, consisting of an optical device such as a beamsplitter, can be used to compute the Kravchuk transform — an approach that could be better suited to digital image processing and computer vision than the commonly used fast Fourier transform (FFT) algorithm. There currently exists no fast algorithm to compute the Kravchuk transform, but the...Read full article

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    Published: July 2019
    Glossary
    quantum optics
    The area of optics in which quantum theory is used to describe light in discrete units or "quanta" of energy known as photons. First observed by Albert Einstein's photoelectric effect, this particle description of light is the foundation for describing the transfer of energy (i.e. absorption and emission) in light matter interaction.
    Research & TechnologyeducationEuropeUniversity of WarsawAmericasNISTUniversity of Oxfordquantum opticsquantum photonicsquantum gatesingle photonsKravchuk transformquantum interferencequantum information processing

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