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Article Dans Une Revue Physical Review Letters Année : 2020

Preparation of Long-Lived, Non-Autoionizing Circular Rydberg States of Strontium

J.-M. Raimond
S. Gleyzes
Michel Brune

Résumé

Alkaline earth Rydberg atoms are very promising tools for quantum technologies. Their highly excited outer electron provides them with the remarkable properties of Rydberg atoms and, notably, with a huge coupling to external fields or to other Rydberg atoms while the ionic core retains an optically active electron. However, low angular-momentum Rydberg states suffer almost immediate autoionization when the core is excited. Here, we demonstrate that strontium circular Rydberg atoms with a core excited in a 4D metastable level are impervious to autoionization over more than a few millisecond time scale. This makes it possible to trap and laser-cool Rydberg atoms. Moreover, we observe singlet to triplet transitions due to the core optical manipulations, opening the way to a quantum microwave to optical interface.
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Dates et versions

hal-03450851 , version 1 (26-11-2021)

Identifiants

Citer

R. c. C Teixeira, A. Larrouy, A. Muni, L. Lachaud, J.-M. Raimond, et al.. Preparation of Long-Lived, Non-Autoionizing Circular Rydberg States of Strontium. Physical Review Letters, 2020, 125 (26), ⟨10.1103/PhysRevLett.125.263001⟩. ⟨hal-03450851⟩
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