Light touch: Controlling the behavior of quantum dots

Researchers from the National Institute of Standards and Technology and the Joint Quantum Institute (JQI), a collaborative center of the University of Maryland and NIST, have reported a new way to fine-tune the light coming from quantum dots by manipulating them with pairs of lasers. Their technique, published in Physical Review Letters, could significantly improve quantum dots as a source of pairs of “entangled” photons, a property with important applications in quantum information technologies.

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