Tiny Optical Cavity Could Make Quantum Networks Possible
Source: https://aph.caltech.edu/news/tiny-optical-cavity-could-make-quantum-networks-possible-1 Parent: https://aph.caltech.edu/people/faraon
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Tiny Optical Cavity Could Make Quantum Networks Possible
March 31, 2020
Andrei Faraon, Professor of Applied Physics and Electrical Engineering, and team have shown that atoms in optical cavities—tiny boxes for light—could be foundational to the creation of a quantum internet. They identified a rare-earth ytterbium ion in the center of a beam. The ytterbium ions are able to store information in their spin for 30 milliseconds. In this time, light could transmit information to travel across the continental United States. "It's a rare-earth ion that absorbs and emits photons in exactly the way we'd need to create a quantum network," says Faraon. "This could form the backbone technology for the quantum internet." [Caltech story]
Written by
Briana Ticehurst
Ytterbium ion in a nanophotonic cavity
Professor Andrei Faraon