Sunlight used to generate quantum-entangled photons as an alternative to laser sources
Using a new cone-shaped solar concentrator, the researchers showed that sunlight can be used to create entangled photons, suggesting the method could one day enable satellites to create secure encryption keys using the sunlight already abundant in space (Image: Florian Sterl)
The new method could be used to reduce the hardware demands of quantum photonics, suggest researchers from Max Planck and the University of Ottawa
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