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Microwave coherent control of ultracold ground-state molecules formed by short-range photoassociation

Ji, Zhonghua; Gong, Ting; He, Yonglin; Hutson, Jeremy M.; Zhao, Yanting; Xiao, Liantuan; Jia, Suotang

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Authors

Zhonghua Ji

Ting Gong

Yonglin He

Yanting Zhao

Liantuan Xiao

Suotang Jia



Abstract

We report the observation of microwave coherent control of rotational states of ultracold 85Rb133Cs molecules formed in their vibronic ground state by short-range photoassociation. Molecules are formed in the single rotational state X(v = 0, J = 1) by exciting pairs of atoms to the short-range state (2)3Π0−(v = 11, J = 0), followed by spontaneous decay. We use depletion spectroscopy to record the dynamic evolution of the population distribution and observe clear Rabi oscillations while irradiating on a microwave transition between coupled neighbouring rotational levels. A density-matrix formalism that accounts for longitudinal and transverse decay times reproduces both the dynamic evolution during the coherent process and the equilibrium population. The coherent control reported here is valuable both for investigating coherent quantum effects and for applications of cold polar molecules produced by continuous short-range photoassociation.

Citation

Ji, Z., Gong, T., He, Y., Hutson, J. M., Zhao, Y., Xiao, L., & Jia, S. (2020). Microwave coherent control of ultracold ground-state molecules formed by short-range photoassociation. Physical Chemistry Chemical Physics, 22(23), 13002-13007. https://doi.org/10.1039/d0cp01191f

Journal Article Type Article
Acceptance Date May 25, 2020
Online Publication Date May 25, 2020
Publication Date Jun 21, 2020
Deposit Date Jul 9, 2020
Publicly Available Date Mar 29, 2024
Journal Physical Chemistry Chemical Physics
Print ISSN 1463-9076
Electronic ISSN 1463-9084
Publisher Royal Society of Chemistry
Peer Reviewed Peer Reviewed
Volume 22
Issue 23
Pages 13002-13007
DOI https://doi.org/10.1039/d0cp01191f

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