Quantum Entanglement


About Quantum Entanglement

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The world at the quantum level, at the scale of particles too small for the eye to see, is very strange. It's possible, for instance, to have two particles that are "entangled" -- that is, they function as if they were connected, even if they are many miles away from each other.

New research co-authored by Francesco Marsili, microdevices engineer at NASA's Jet Propulsion Laboratory, Pasadena, California, makes use of this phenomenon in a technological advancement published in the journal Nature Photonics. Researchers succeeded in teleporting information about the quantum state of a photon, a particle of light, over 15.5 miles (25 kilometers) of optical fiber to a crystal "memory bank," setting a new record of distance traveled in this manner. The previous record in optical fiber was 3.7 miles (6 kilometers). This complex phenomenon is called "quantum teleportation."

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