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Simultaneous Cooling, Concentrating of Light Creates Superphoton

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BONN, Germany, Nov. 24, 2010 — By devising a way to cool and control light at the same time, a "gas" of photons was made to form the ultracold, high-density quantum state known as a Bose-Einstein condensate. Such photon-filled condensates, thought to be impossible to create until recently, could potentially serve as a new source of light for lasers that work in the x-ray range or in more powerful computer chips. An illustration of the superphoton. (Image: Jan Klaers, University of Bonn) Bose–Einstein condensation — the macroscopic accumulation of particles in a single, lowest-energy quantum state...Read full article

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    Published: November 2010
    Glossary
    bose-einstein condensate
    A Bose-Einstein condensate (BEC) is a state of matter that forms at temperatures close to absolute zero. It is named after Satyendra Nath Bose and Albert Einstein, who independently predicted the existence of such a state in the 1920s. BEC is a unique and fascinating form of matter that exhibits macroscopic quantum phenomena. In a Bose-Einstein condensate, some key factors to consider are: Temperature: BEC forms at extremely low temperatures, typically in the nanokelvin (billionths of a...
    color temperature
    A colorimetric concept related to the apparent visual color of a source (not its temperature). For a blackbody, the color temperature is equal to the temperature in kelvin.
    Basic ScienceBose-Einstein condensatebosonsColor TemperatureDr. Frank VewingerDr. Martin Weitzdye-filled mirrored microcavityEuropeGermanyinfrared photonsJan KlärsJulian SchmittLight Sourcesmirrorsoptical cavityOpticsphoton-filled condensatephotonsphotovoltaicsResearch & Technologyrubidium atomsspectroscopysuperparticlesuperphotonthermal equilibriumtungsten filamentultracold high-density quantum stateUniversity of BonnUVx-raysLasers

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