Rice Size ‘Maser’ Provides Huge Boost to Quantum Computing

January 16, 2015 8:20 PM

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Researchers at Princeton University have developed a tiny laser, the size of a grain of rice. This rice size ‘maser’ provides a huge boost to quantum computing. The laser is powered by single electrons being tunnelled through artificial atoms, known as quantum dots. The laser uses around one billionth of the amount of electricity that a traditional energy that a hairdryer uses, while emitting energy in the microwave length, which allows researchers to see the interaction between light and moving electrons. Quantum dots are ideal for use in lasers as, when they are excited, they emit light.

So, let’s take a look at how this new ‘maser’ works a little bit more. Quantum dots are tiny particles of light emitting crystals, which can absorb light from one wavelength and turn it into highly saturated light at other wavelengths. This means it will emit light at longer wavelengths than normal ...

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