Entanglement is one of the best tricks in the quantum physics magic box, two particles that are inextricably linked when measured – a key component of potential advances in computing, communication, and sensing technologies.
Scientists have a variety of methods to create entangled particles, often using light particles (photons). The standard way of entangling photons is to fire a high-energy laser into a specially configured crystal.
It's a reliable and well-established method – and also one that demands energy, and of course access to an advanced laser.
Now researchers from the University of Ottawa in Canada and the Max Planck Institute for the Science of Light in Germany have done what some had considered impossible: generated entangled photons from sunlight.
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