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Researchers at the University of Warsaw have successfully extended the lifetime of Rydberg spinwaves by nearly nine times using a novel multi-photon addressing scheme that minimizes motional dephasing. This breakthrough resolves a critical barrier for integrating these excitations with Gradient Echo Memory protocols, paving the way for more robust multimode quantum memories and long-range interaction networks. The advancement represents significant progress in stabilizing collective atomic states essential for scalable quantum information processing.
Rydberg Quantum Spinwaves Last 9× Longer With New Addressing Scheme
Researchers extended the lifetime of collective Rydberg excitations, key to advancing quantum technologies, by nearly 9x.
Researchers at the Faculty of Physics, University of Warsaw and the Centre for Quantum Optical Technologies, Centre of New Technologies, University of Warsaw have achieved a nearly tenfold increase in the lifetime of Rydberg quantum spinwaves, overcoming a significant obstacle to their use in advanced quantum technologies. The team generated these collective Rydberg excitations using a novel multi-photon addressing scheme, shaping atomic energy levels into a configuration resembling the letter Ń to achieve near-zero momentum transfer. This approach directly addresses the rapid motional dephasing that previously limited integration with the Gradient Echo Memory (GEM) protocol, now enabling multiplexed storage and…
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