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Volume 10
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10.3390/app10072371
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Article

Vibrational Quenching of Weakly Bound Cold Molecular Ions Immersed in Their Parent Gas

by
Krzysztof Jachymski
1,* and
Florian Meinert
2
1
Forschungszentrum Jülich Gmbh, Institute of Quantum Control (PGI-8), D-52425 Jülich, Germany
2
5. Physikalisches Institut and Center for Integrated Quantum Science and Technology, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
*
Author to whom correspondence should be addressed.
Appl. Sci. 2020, 10(7), 2371; https://doi.org/10.3390/app10072371
Submission received: 28 February 2020 / Revised: 18 March 2020 / Accepted: 25 March 2020 / Published: 30 March 2020
(This article belongs to the Special Issue Optical Trapping of Ions and Atoms 2020: Novel Advances and Prospects)
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Abstract

Hybrid ion–atom systems provide an excellent platform for studies of state-resolved quantum chemistry at low temperatures, where quantum effects may be prevalent. Here we study theoretically the process of vibrational relaxation of an initially weakly bound molecular ion due to collisions with the background gas atoms. We show that this inelastic process is governed by the universal long-range part of the interaction potential, which allows for using simplified model potentials applicable to multiple atomic species. The product distribution after the collision can be estimated by making use of the distorted wave Born approximation. We find that the inelastic collisions lead predominantly to small changes in the binding energy of the molecular ion.
Keywords: cold ion–atom systems; molecular collisions; inelastic scattering cold ion–atom systems; molecular collisions; inelastic scattering

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MDPI and ACS Style

Jachymski, K.; Meinert, F. Vibrational Quenching of Weakly Bound Cold Molecular Ions Immersed in Their Parent Gas. Appl. Sci. 2020, 10, 2371. https://doi.org/10.3390/app10072371

AMA Style

Jachymski K, Meinert F. Vibrational Quenching of Weakly Bound Cold Molecular Ions Immersed in Their Parent Gas. Applied Sciences. 2020; 10(7):2371. https://doi.org/10.3390/app10072371

Chicago/Turabian Style

Jachymski, Krzysztof, and Florian Meinert. 2020. "Vibrational Quenching of Weakly Bound Cold Molecular Ions Immersed in Their Parent Gas" Applied Sciences 10, no. 7: 2371. https://doi.org/10.3390/app10072371

APA Style

Jachymski, K., & Meinert, F. (2020). Vibrational Quenching of Weakly Bound Cold Molecular Ions Immersed in Their Parent Gas. Applied Sciences, 10(7), 2371. https://doi.org/10.3390/app10072371

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