Libration of strongly oriented polar molecules inside a superfluid

E. Redchenko, M. Lemeshko, ChemPhysChem 17 (2016) 3649–3654.


Journal Article | Published | English
Abstract
We study a polar molecule immersed in a superfluid environment, such as a helium nanodroplet or a Bose–Einstein condensate, in the presence of a strong electrostatic field. We show that coupling of the molecular pendular motion, induced by the field, to the fluctuating bath leads to formation of pendulons—spherical harmonic librators dressed by a field of many-particle excitations. We study the behavior of the pendulon in a broad range of molecule–bath and molecule–field interaction strengths, and reveal that its spectrum features a series of instabilities which are absent in the field-free case of the angulon quasiparticle. Furthermore, we show that an external field allows to fine-tune the positions of these instabilities in the molecular rotational spectrum. This opens the door to detailed experimental studies of redistribution of orbital angular momentum in many-particle systems. © 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Publishing Year
Date Published
2016-09-18
Journal Title
ChemPhysChem
Volume
17
Issue
22
Page
3649 - 3654
IST-REx-ID

Cite this

Redchenko E, Lemeshko M. Libration of strongly oriented polar molecules inside a superfluid. ChemPhysChem. 2016;17(22):3649-3654. doi:10.1002/cphc.201601042
Redchenko, E., & Lemeshko, M. (2016). Libration of strongly oriented polar molecules inside a superfluid. ChemPhysChem, 17(22), 3649–3654. https://doi.org/10.1002/cphc.201601042
Redchenko, Elena, and Mikhail Lemeshko. “Libration of Strongly Oriented Polar Molecules inside a Superfluid.” ChemPhysChem 17, no. 22 (2016): 3649–54. https://doi.org/10.1002/cphc.201601042.
E. Redchenko and M. Lemeshko, “Libration of strongly oriented polar molecules inside a superfluid,” ChemPhysChem, vol. 17, no. 22, pp. 3649–3654, 2016.
Redchenko E, Lemeshko M. 2016. Libration of strongly oriented polar molecules inside a superfluid. ChemPhysChem. 17(22), 3649–3654.
Redchenko, Elena, and Mikhail Lemeshko. “Libration of Strongly Oriented Polar Molecules inside a Superfluid.” ChemPhysChem, vol. 17, no. 22, Wiley-Blackwell, 2016, pp. 3649–54, doi:10.1002/cphc.201601042.

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