Anomalous Zeeman splitting in the rovibrational spectrum of the OH radical solvated in superfluid helium or: How I learned to stop worrying and love the proverbial droplet effects
Douberly, Gary E.
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https://hdl.handle.net/2142/104474
Description
Title
Anomalous Zeeman splitting in the rovibrational spectrum of the OH radical solvated in superfluid helium or: How I learned to stop worrying and love the proverbial droplet effects
Author(s)
Douberly, Gary E.
Issue Date
2019-06-18
Keyword(s)
Fundamental interest
Date of Ingest
2019-07-15T22:17:00Z
2020-01-25T19:29:57Z
Abstract
The hydroxyl radical was doped into a helium droplet, and a laser/droplet interaction zone was subjected to a homogeneous 0.425(2) Tesla magnetic field. Mid-infrared Zeeman spectroscopy reveals splittings of the \textit{Q}(3/2) $\Lambda$-doublet transitions that are 21 \% larger than those predicted by both degenerate perturbation theory and a variational treatment of the Zeeman effect. This implies simply that the product $g_{e}B\Omega_{eff}$ is 21 \% larger in superfluid helium than in the gas-phase. Although speculative, it is interesting to consider the results in the context of the Einstein-de Haas effect, in which coupling to droplet phonons induces a renormalization of the electron $g$ factor.\footnote{J.H. Mentink, M.I. Katsnelson, M. Lemeshko, Quantum many-body dynamics of the Einstein-de Hass effect, \textit{Phys. Rev. B}, \textbf{99}, 064428 (2019).}
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