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Toy Houses Built From Light

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CALGARY, Alberta, Canada, Feb. 16, 2010 – A team of physicists from the University of Calgary has discovered how to use quantum entanglement to stack light particles. By manipulating the quantum entanglement, the team mounted up to two photons on top of one another to construct a variety of quantum states of light. In fact, the researchers say they can build two-story quantum toy houses of any style and architecture. "This ability to prepare or control complex quantum objects is considered the holy grail of quantum science," said Andrew MacRae, a co-author of the paper and a doctoral physics student at the university. "It...Read full article

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    Published: February 2010
    Glossary
    astronomy
    The scientific observation of celestial radiation that has reached the vicinity of Earth, and the interpretation of these observations to determine the characteristics of the extraterrestrial bodies and phenomena that have emitted the radiation.
    quantum entanglement
    Quantum entanglement is a phenomenon in quantum mechanics where two or more particles become correlated to such an extent that the state of one particle instantly influences the state of the other(s), regardless of the distance separating them. This means that the properties of each particle, such as position, momentum, spin, or polarization, are interdependent in a way that classical physics cannot explain. When particles become entangled, their individual quantum states become inseparable,...
    Albert EinsteinAlexander LvovskyAmericasAndrew MacRaeastronomyBasic Scienceblue laser beamCanadaCommunicationsLego with photonsLight Sourcesphotonsquantum computersquantum entanglementquantum sciencequantum states of lightResearch & TechnologySensors & Detectorssingle photon detectorsstacking light particlesUniversity of CalgaryLasers

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