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Updated: Dec 11, 2025

Gradient Echo Quantum Memory in Warm Atomic Vapor
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AC Josephson effect between two superfluid time crystals

S Autti1,2, P J Heikkinen3,4, J T Mäkinen3,5,6

  • 1Low Temperature Laboratory, Department of Applied Physics, Aalto University, Espoo, Finland. s.autti@lancaster.ac.uk.

Nature Materials
|August 19, 2020
PubMed

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