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Quantum optics

Quantum optics

Chip shifts frequencies of photon qubits

22 Sep 2016
Photograph showing the frequency-converter chip
Frequency converter: device converts infrared light to visible light and back again. (Courtesy: Hong Tang)
Engineers in the US have developed a chip that can convert visible light into infrared and back agai

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Sophia Chen is a science writer based in Tucson, Arizona
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