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arXiv · 2302.04079

Investigating Mechanisms of State Localization in Highly-Ionized Dense Plasmas

Thomas Gawne·Thomas Campbell·Alessandro Forte·Patrick Hollebon·Gabriel Perez-Callejo·Oliver Humphries·Oliver Karnbach·Muhammad F. Kasim·Thomas R. Preston·Hae Ja Lee·Alan Miscampbell·Quincy Y. van den Berg·Bob Nagler·Shenyuan Ren·Ryan B. Royle·Justin S. Wark·Sam M. Vinko
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Abstract

We present the first experimental observation of K$_{\beta}$ emission from highly charged Mg ions at solid density, driven by intense x-rays from a free electron laser. The presence of K$_{\beta}$ emission indicates the $n=3$ atomic shell is relocalized for high charge states, providing an upper constraint on the depression of the ionization potential. We explore the process of state relocalization in dense plasmas from first principles using finite-temperature density functional theory alongside a wavefunction localization metric, and find excellent agreement with experimental results.

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Thomas Gawne, Thomas Campbell, Alessandro Forte, Patrick Hollebon, Gabriel Perez-Callejo, Oliver Humphries, Oliver Karnbach, Muhammad F. Kasim, Thomas R. Preston, Hae Ja Lee, Alan Miscampbell, Quincy Y. van den Berg, Bob Nagler, Shenyuan Ren, Ryan B. Royle, Justin S. Wark, Sam M. Vinko. 2023-02-08. Investigating Mechanisms of State Localization in Highly-Ionized Dense Plasmas. https://doi.org/10.1103/physreve.108.035210

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