Direct Laser Cooling of Rydberg Atoms with an Isolated-Core Transition
(2024) Physical Review Letters — Vol. 132, n° 193402-1, p. 193402-193406 (2024)
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- We propose a scheme to directly laser cool Rydberg atoms by laser cooling the residual ion core within the Rydberg-electron orbit. The scheme is detailed for alkaline-earth-metal Rydberg atoms, whose ions can be easily laser cooled. We demonstrate that a closed optical cooling cycle can be found despite the perturbations caused by the Rydberg electron and that this cycle can be driven over more than 100 μs to achieve laser cooling. The cooling dynamics with and without the presence of magnetic fields are discussed in detail.
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Bouillon, A., Marín Bujedo, E., & Génévriez, M. (2024). Direct Laser Cooling of Rydberg Atoms with an Isolated-Core Transition. Physical Review Letters, 132(193402-1), 193402-193406. https://doi.org/10.1103/physrevlett.132.193402 (Original work published 2024)