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Nanowire Detector Assists Three-Photon Entanglement

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WATERLOO, Ontario, Canada, Sept. 15, 2014 — An ultrafast, super-efficient single-photon detector has led to direct entanglement of three photons. Researchers at the University of Waterloo, with help from a team at the National Institute of Standards and Technology (NIST), made the discovery using a superconducting nanowire detector developed at NIST. Critical for quantum information systems, entanglement has long been impossible for more than two photons without also destroying their fragile quantum states. Superconducting nanowire single-photon detectors assisted in the successful three-photon entanglement. Images...Read full article

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    Published: September 2014
    Glossary
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    quantum
    The term quantum refers to the fundamental unit or discrete amount of a physical quantity involved in interactions at the atomic and subatomic scales. It originates from quantum theory, a branch of physics that emerged in the early 20th century to explain phenomena observed on very small scales, where classical physics fails to provide accurate explanations. In the context of quantum theory, several key concepts are associated with the term quantum: Quantum mechanics: This is the branch of...
    AmericasCommunicationsentanglementKrister ShalmnanoNational Institute of Standards and TechnologyNISTquantumResearch & TechnologySensors & Detectorssingle-photon detectorUniversity of Waterloo

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