Transient Density-Induced Dipolar Interactions in a Thin Vapor Cell

Christaller, Florian; Mäusezahl, Max; Moumtsilis, Felix; Belz, Annika; Kübler, Harald; Alaeian, Hadiseh; Adams, Charles S.; Löw, Robert; Pfau, Tilman

Abstract

We exploit the effect of light-induced atomic desorption to produce high atomic densities (n ≫ k3) in a rubidium vapor cell. An intense off-resonant laser is pulsed for roughly one nanosecond on a micrometersized sapphire-coated cell, which results in the desorption of atomic clouds from both internal surfaces. We probe the transient atomic density evolution by time-resolved absorption spectroscopy. With a temporal resolution of ≈ 1 ns, we measure the broadening and line shift of the atomic resonances. Both broadening and line shift are attributed to dipole-dipole interactions. This fast switching of the atomic density and dipolar interactions could be the basis for future quantum devices based on the excitation blockade.

Citation

Christaller, F., Mäusezahl, M., Moumtsilis, F., Belz, A., Kübler, H., Alaeian, H., Adams, C. S., Löw, R., & Pfau, T. (2022). Transient Density-Induced Dipolar Interactions in a Thin Vapor Cell. Physical Review Letters, 128(17), Article 173401. https://doi.org/10.1103/physrevlett.128.173401

• Journal Article Type: Article
• Acceptance Date: Mar 23, 2022
• Online Publication Date: Apr 27, 2022
• Publication Date: 2022
• Deposit Date: Jun 29, 2022
• Publicly Available Date: Jun 29, 2022
• Journal: Physical Review Letters
• Print ISSN: 0031-9007
• Electronic ISSN: 1079-7114
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 128
• Issue: 17
• Article Number: 173401
• DOI: https://doi.org/10.1103/physrevlett.128.173401
• Public URL: https://durham-repository.worktribe.com/output/1201020