87 citations · 582 across the 28 of their papers we have counts for
29 papers
Ion stopping from bound and free electrons in plasmas: A channel-mixed RPA approach with average-atom orbitals
Zachary A Johnson, Patrick J Adrian, Joshua A Leveillee +1
Ion stopping in partially ionized plasmas often receives roughly equal contributions from bound and free electrons, yet bound electron contributions are usually treated at a very c…
Roadmap for warm dense matter physics
Jan Vorberger, Frank Graziani, David Riley +71
This roadmap presents the state-of-the-art, current challenges and near future developments anticipated in the thriving field of warm dense matter physics. Originating from strongl…
Dense Plasma Opacity from Excited States Method
C. E. Starrett, C. J. Fontes, H. B. Tran Tan +2
The self-consistent inclusion of plasma effects in opacity calculations is a significant modeling challenge. As density increases, such effects can no longer be treated perturbativ…
Pseudoatom Molecular Dynamics Plasma Microfields
J. R. White, C. J. Fontes, M. C. Zammit +2
Spectral line profiles are powerful diagnostic tools for both laboratory and astrophysical plasmas, as their shape is sensitive to the plasma environment. The low-frequency compone…
Predicting Excitation Energies in Warm Dense Matter
T. Q. Thelen, D. A. Rehn, C. J. Fontes +1
In a dense plasma environment, the energy levels of an ion shift relative to the isolated ion values. This shift is reflected in the optical spectrum of the plasma and can be measu…
Excited States in Warm and Hot Dense Matter
C. E. Starrett, T. Q. Thelen, C. J. Fontes +1
Accurate modeling of warm and hot dense matter is challenging in part due to the multitude of excited states that must be considered. In thermal density functional theory, these ex…
Platform for Probing Radiation Transport Properties of Hydrogen at Conditions Found in the Deep Interiors of Red Dwarfs
J. Lütgert, M. Bethkenhagen, B. Bachmann +19
We describe an experimental concept at the National Ignition Facility for specifically tailored spherical implosions to compress hydrogen to extreme densities (up to 800$\tim…
Dense plasma opacity via the multiple-scattering method
Nathaniel R. Shaffer, Charles E. Starrett
The calculation of the optical properties of hot dense plasmas with a model that has self-consistent plasma physics is a grand challenge for high energy density science. Here we ex…
OpenSesame tutorial
Daniel A. Rehn, Carl W. Greeff, Daniel G. Sheppard +2
OpenSesame is a program for generating tabular equations of state (EOS), with capabilities for multiphase EOS construction. In this tutorial, we provide an overview of how to run O…
Effect of Ionic Disorder on the Principal Shock Hugoniot
Crystal F. Ottoway, Daniel A. Rehn, Didier Saumon +1
The effect of ionic disorder on the principal Hugoniot is investigated using Multiple Scattering Theory to very high pressure (Gbar). Calculations using molecular dynamics to simul…
Time-Dependent Density Functional Theory Applied to Average Atom Opacity
N. M. Gill, C. J. Fontes, C. E. Starrett
We focus on studying the opacity of iron, chromium, and nickel plasmas at conditions relevant to experiments carried out at Sandia National Laboratories [J. E. Bailey et al., Natur…
Real-Space Green's functions for Warm Dense Matter
M. Laraia, C. Hanson, N. R. Shaffer +3
Accurate modeling of the electronic structure of warm dense matter is a challenging problem whose solution would allow a better understanding of material properties like equation o…
Charge State Distributions in Dense Plasmas
J. White, W. Johns, C. J. Fontes +3
Charge state distributions in hot, dense plasmas are a key ingredient in the calculation of spectral quantities like the opacity. However, they are challenging to calculate, as mod…
Multiple Scattering Theory for Dense Plasmas
Charles E. Starrett, Nathaniel Shaffer
Dense plasmas occur in stars, giant planets and in inertial fusion experiments. Accurate modeling of the electronic structure of these plasmas allows for prediction of material pro…
Review of the First Charged-Particle Transport Coefficient Comparison Workshop
P. E. Grabowski, S. B. Hansen, M. S. Murillo +42
We present the results of the first Charged-Particle Transport Coefficient Code Comparison Workshop, which was held in Albuquerque, NM October 4-6, 2016. In this first workshop, sc…
New Conductive Opacities for White Dwarf Envelopes
Simon Blouin, Nathaniel R. Shaffer, Didier Saumon +1
Thanks to their continuous cooling and relative simplicity, white dwarf stars are routinely used to measure the ages of stellar populations. The usefulness of white dwarfs as cosmo…
Diffusion coefficients in the envelopes of white dwarfs
R. A. Heinonen, D. Saumon, J. Daligault +3
The diffusion of elements is a key process in understanding the unusual surface composition of white dwarfs stars and their spectral evolution. The diffusion coefficients of Paquet…
A Model of Electron Transport in Dense Plasmas Spanning Temperature Regimes
Nathaniel R. Shaffer, Charles E. Starrett
We present a new model of electron transport in warm and hot dense plasmas which combines the quantum Landau-Fokker-Planck equation with the concept of mean-force scattering. We ob…
Model for the electrical conductivity in dense plasma mixtures
C. E. Starrett, N. R. Shaffer, D. Saumon +4
A new model for the electrical conductivity of dense plasmas with a mixture of ion species, containing no adjustable parameters, is presented. The model takes the temperature, mass…
Tabular Electrical Conductivity for Aluminum
C. E. Starrett, R. Perriot, N. R. Shaffer +3
A new Sesame-type table for the electrical conductivity of aluminum is described. The table is based on density functional theory calculations and ranges from 0.001 to 1 times soli…
Correlations Between Conduction Electrons in Dense Plasmas
Nathaniel R. Shaffer, Charles E. Starrett
Most treatments of electron-electron correlations in dense plasmas either ignore them entirely (random phase approximation) or neglect the role of ions (jellium approximation). In…
Coulomb Log for Conductivity of Dense Plasmas
Charles Starrett
The Coulomb log (log Λ) approximation is widely used to approximate electron transport coefficients in dense plasmas. It is a classical approximation to the momentum transport cros…
Wide Ranging Equation of State with Tartarus: a Hybrid Green's Function/Orbital based Average Atom Code
C. E. Starrett, N. M. Gill, T. Sjostrom +1
Average atom models are widely used to make equation of state tables and for calculating other properties of materials over a wide range of conditions, from zero temperature isolat…
High Temperature Electronic Structure with KKR
C. E. Starrett
Modeling high temperature (10's or 100's of eV), dense plasmas is challenging due to the multitude of non-negligible physical effects including significant partial ionization and m…