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Investigating Mechanisms of State Localization in Highly-Ionized Dense Plasmas

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arxiv 2302.04079 v3 pith:ODNTTZUK submitted 2023-02-08 physics.plasm-ph

classification physics.plasm-ph
keywords betadensedensityemissionexperimentalfirstlocalizationplasmas
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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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