Rice-sized laser, powered one electron at a time, bodes well for quantum computing
Princeton NJ (SPX) Jan 23, 2015 - Princeton University researchers have built a rice grain-sized laser powered by single electrons tunneling through artificial atoms known as quantum dots. The tiny microwave laser, or "maser," is a demonstration of the fundamental interactions between light and moving electrons. The researchers built the device - which uses about one-billionth the electric current needed to power a hair d ... more

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