Patrick Hollebon
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View article: Modeling of warm dense hydrogen via explicit real-time electron dynamics: Electron transport properties
Modeling of warm dense hydrogen via explicit real-time electron dynamics: Electron transport properties Open
We extract electron transport properties from atomistic simulations of a two-component plasma by mapping the long-wavelength behavior to a two-fluid model. The mapping procedure is performed via Markov Chain Monte Carlo sampling over multi…
View article: Ionization calculations using classical molecular dynamics
Ionization calculations using classical molecular dynamics Open
By performing an ensemble of molecular dynamics simulations, the model-dependent ionization state is computed for strongly interacting systems self-consistently. This is accomplished through a free energy minimization framework based on th…
View article: Modeling of warm dense hydrogen via explicit real-time electron dynamics: Dynamic structure factors
Modeling of warm dense hydrogen via explicit real-time electron dynamics: Dynamic structure factors Open
We present two methods for computing the dynamic structure factor for warm dense hydrogen without invoking either the Born-Oppenheimer approximation or the Chihara decomposition, by employing a wave-packet description that resolves the ele…
View article: Modelling of warm dense hydrogen via explicit real time electron dynamics: Electron transport properties
Modelling of warm dense hydrogen via explicit real time electron dynamics: Electron transport properties Open
We extract electron transport properties from atomistic simulations of a two-component plasma, by mapping the long-wavelength behaviour to a two-fluid model. The mapping procedure is performed via Markov Chain Monte Carlo sampling over mul…
View article: Ionisation Calculations using Classical Molecular Dynamics
Ionisation Calculations using Classical Molecular Dynamics Open
By performing an ensemble of molecular dynamics simulations, the model-dependent ionisation state is computed for strongly interacting systems self-consistently. This is accomplished through a free energy minimisation framework based on th…
View article: Modelling of warm dense hydrogen via explicit real time electron dynamics: Dynamic structure factors
Modelling of warm dense hydrogen via explicit real time electron dynamics: Dynamic structure factors Open
We present two methods for computing the dynamic structure factor for warm dense hydrogen without invoking either the Born-Oppenheimer approximation or the Chihara decomposition, by employing a wave-packet description that resolves the ele…
View article: Dielectronic satellite emission from a solid-density Mg plasma: Relationship to models of ionization potential depression
Dielectronic satellite emission from a solid-density Mg plasma: Relationship to models of ionization potential depression Open
We report on experiments where solid-density Mg plasmas are created by heating with the focused output of the Linac Coherent Light Source x-ray free-electron laser. We study the K-shell emission from the helium- and lithium-like ions using…
View article: Dielectronic satellite emission from a solid-density Mg plasma: relationship to models of ionisation potential depression
Dielectronic satellite emission from a solid-density Mg plasma: relationship to models of ionisation potential depression Open
We report on experiments where solid-density Mg plasmas are created by heating with the focused output of the Linac Coherent Light Source x-ray free-electron-laser. We study the K-shell emission from the Helium and Lithium-like ions using …
View article: Investigating mechanisms of state localization in highly ionized dense plasmas
Investigating mechanisms of state localization in highly ionized dense plasmas Open
We present experimental observations of K_{β} emission from highly charged Mg ions at solid density, driven by intense x rays from a free electron laser. The presence of K_{β} emission indicates the n=3 atomic shell is relocalized for high…
View article: Investigating Mechanisms of State Localization in Highly-Ionized Dense Plasmas
Investigating Mechanisms of State Localization in Highly-Ionized Dense Plasmas Open
We present the first experimental observation of K$_β$ emission from highly charged Mg ions at solid density, driven by intense x-rays from a free electron laser. The presence of K$_β$ emission indicates the $n=3$ atomic shell is relocaliz…
View article: Excited-state potentials for modelling dense plasmas from first principles
Excited-state potentials for modelling dense plasmas from first principles Open
The modelling of dense plasmas using finite-temperature density functional theory has proven very successful in determining transport properties and the equation of state of systems where quantum many-body effects and correlations play a k…
View article: Time-Resolved XUV Opacity Measurements of Warm Dense Aluminum
Time-Resolved XUV Opacity Measurements of Warm Dense Aluminum Open
The free-free opacity in plasmas is fundamental to our understanding of energy transport in stellar interiors and for inertial confinement fusion research. However, theoretical predictions in the challenging dense plasma regime are conflic…
View article: <i>Ab initio</i> simulations and measurements of the free-free opacity in aluminum
<i>Ab initio</i> simulations and measurements of the free-free opacity in aluminum Open
The free-free opacity in dense systems is a property that both tests our fundamental understanding of correlated many-body systems, and is needed to understand the radiative properties of high energy-density plasmas. Despite its importance…
View article: Clocking Femtosecond Collisional Dynamics via Resonant X-Ray Spectroscopy
Clocking Femtosecond Collisional Dynamics via Resonant X-Ray Spectroscopy Open
Electron-ion collisional dynamics is of fundamental importance in determining plasma transport properties, nonequilibrium plasma evolution, and electron damage in diffraction imaging applications using bright x-ray free-electron lasers (FE…
View article: Measurements of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>K</mml:mi></mml:math>-Shell Opacity of a Solid-Density Magnesium Plasma Heated by an X-Ray Free-Electron Laser
Measurements of the -Shell Opacity of a Solid-Density Magnesium Plasma Heated by an X-Ray Free-Electron Laser Open
We present measurements of the spectrally resolved x rays emitted from solid-density magnesium targets of varying sub-μm thicknesses isochorically heated by an x-ray laser. The data exhibit a largely thickness-independent source function, …