Super-cooling radioactive atoms could produce a laser-like neutrino beam, according to a duo of physicists from MIT and the University of Texas at Arlington. As an example, the authors calculated that such a neutrino laser could be realized by trapping 1 million atoms of rubidium-83. Normally, the radioactive atoms have a half-life of about 82 days, meaning that half the atoms decay, shedding an equivalent number of neutrinos, every 82 days. They...
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