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Article

Long-Range Atom–Ion Rydberg Molecule: A Novel Molecular Binding Mechanism

Center for Integrated Quantum Science and Technology IQST, Institut für Quantenmaterie, Universität Ulm, 89069 Ulm, Germany
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Academic Editors: Winthrop W. Smith and Douglas S. Goodman
Received: 4 May 2021 / Revised: 2 June 2021 / Accepted: 10 June 2021 / Published: 21 June 2021
(This article belongs to the Special Issue Low Energy Interactions between Ions and Ultracold Alkali Atoms)
We present a novel binding mechanism where a neutral Rydberg atom and an atomic ion form a molecular bound state at a large internuclear distance. The binding mechanism is based on Stark shifts and level crossings that are induced in the Rydberg atom due to the electric field of the ion. At particular internuclear distances between the Rydberg atom and the ion, potential wells occur that can hold atom–ion molecular bound states. Apart from the binding mechanism, we describe important properties of the long-range atom–ion Rydberg molecule, such as its lifetime and decay paths, its vibrational and rotational structure, and its large dipole moment. Furthermore, we discuss methods of how to produce and detect it. The unusual properties of the long-range atom–ion Rydberg molecule give rise to interesting prospects for studies of wave packet dynamics in engineered potential energy landscapes. View Full-Text
Keywords: hybrid atom–ion system; cold chemistry; Rydberg atom; long-range molecule; avoided crossing hybrid atom–ion system; cold chemistry; Rydberg atom; long-range molecule; avoided crossing
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MDPI and ACS Style

Deiß, M.; Haze, S.; Hecker Denschlag, J. Long-Range Atom–Ion Rydberg Molecule: A Novel Molecular Binding Mechanism. Atoms 2021, 9, 34. https://0-doi-org.brum.beds.ac.uk/10.3390/atoms9020034

AMA Style

Deiß M, Haze S, Hecker Denschlag J. Long-Range Atom–Ion Rydberg Molecule: A Novel Molecular Binding Mechanism. Atoms. 2021; 9(2):34. https://0-doi-org.brum.beds.ac.uk/10.3390/atoms9020034

Chicago/Turabian Style

Deiß, Markus, Shinsuke Haze, and Johannes Hecker Denschlag. 2021. "Long-Range Atom–Ion Rydberg Molecule: A Novel Molecular Binding Mechanism" Atoms 9, no. 2: 34. https://0-doi-org.brum.beds.ac.uk/10.3390/atoms9020034

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