New distance record for quantum entanglement between light and matter

The spooky world of quantum mechanics might someday make for a faster and more secure internet. Now a study makes strides towards that future with a new distance record for quantum entanglement between particles of light and matter. Researchers have managed to send a photon, entangled with an ion, down a 50-km-long (31-mi) optical fiber.

Source: New distance record for quantum entanglement between light and matter

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