Spectral Signatures of Vibronic Coupling in Trapped Cold Ionic Rydberg Systems

Wilkinson, Joseph W.P.; Li, Weibin; Lesanovsky, Igor

Abstract

Atoms and ions confined with electric and optical fields form the basis of many current quantum simulation and computing platforms. When excited to high-lying Rydberg states, long-ranged dipole interactions emerge which strongly couple the electronic and vibrational degrees of freedom through state-dependent forces. This vibronic coupling and the ensuing hybridization of internal and external degrees of freedom manifest through clear signatures in the many-body spectrum. We illustrate this by considering the case of two trapped Rydberg ions, for which the interaction between the relative vibrations and Rydberg states realizes a quantum Rabi model. We proceed to demonstrate that the aforementioned hybridization can be probed by radio frequency spectroscopy and discuss observable spectral signatures at finite temperatures and for larger ion crystals.

Citation

Wilkinson, J. W., Li, W., & Lesanovsky, I. (2024). Spectral Signatures of Vibronic Coupling in Trapped Cold Ionic Rydberg Systems. Physical Review Letters, 132(22), Article 223401. https://doi.org/10.1103/physrevlett.132.223401

• Journal Article Type: Article
• Acceptance Date: Apr 23, 2024
• Online Publication Date: May 29, 2024
• Publication Date: May 31, 2024
• Deposit Date: Apr 24, 2024
• Publicly Available Date: May 29, 2024
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 132
• Issue: 22
• Article Number: 223401
• DOI: https://doi.org/10.1103/physrevlett.132.223401
• Keywords: Electric dipole-dipole interactions; Vibronic effects; Rydberg atoms & molecules; Trapped ions; Rabi model
• Public URL: https://nottingham-repository.worktribe.com/output/34103789
• Publisher URL: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.132.223401