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Quantum computers seeking power hone their networking skills

Photons help to entangle two far-flung atoms, which can then be used for quantum calculations.
Cavity based qubit module

A rubidium atom trapped between two mirrors (light green) can be ‘entangled’ with another atom in a distant room. Credit: Max Planck Institute of Quantum Optics

Physicists have linked devices in two separate laboratories to make them work as a single, rudimentary quantum computer.

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Nature 590, 367 (2021)

doi: https://doi.org/10.1038/d41586-021-00339-x

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