Bright and dark Autler-Townes states in the atomic Rydberg multilevel spectroscopy

Year: 2022

Authors: Bevilacqua G., Arimondo E.

Autors Affiliation: Univ Siena, Dipartimento Sci Fis Terra & Ambiente, Via Roma 56, I-53100 Siena, Italy; Univ Pisa, Dipartimento Fis E Fermi, Largo B Pontecorvo 3, I-56122 Pisa, Italy; CNR, Ist Nazl Ott, Via G Moruzzi 1, I-56124 Pisa, Italy.

Abstract: We investigated the Autler-Townes (AT) splitting produced by microwave (mw) transitions between atomic Rydberg states explored by optical spectroscopy from the ground electronic state. The laser-atom Hamiltonian describing the double irradiation of such a multilevel system is analysed on the basis of the Morris-Shore transformation. The application of this transformation to the mw-dressed atomic system allows the identification of bright, dark, and spectator states associated with different configurations of atomic states and mw polarisations. We derived synthetic spectra that show the main features of Rydberg spectroscopy. Complex AT spectra are obtained in a regime of strong mw dressing, where a hybridisation of the Rydberg fine structure states is produced by the driving.

Journal/Review: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

Volume: 55 (15)      Pages from: 154001-1  to: 154001-10

KeyWords: Rydberg spectroscopy; quantum sensors; dressed atom; quantum control
DOI: 10.1088/1361-6455/ac7684

Citations: 4
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