87 citations · 582 across the 28 of their papers we have counts for
23 papers · 1 filter
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…
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…
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…
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…
Potential of mean force for electrical conductivity of dense plasmas
C. E. Starrett
The electrical conductivity in dense plasmas can be calculated with the relaxation-time approximation provided that the interaction potential between the scattering electron and th…
Kubo-Greenwood approach to conductivity in dense plasmas with average atom models
C. E. Starrett
A new formulation of the Kubo-Greenwood conductivity for average atom models is given. The new formulation improves upon previous by explicitly including the ionic-structure factor…
An integral equation model for warm and hot dense mixtures
C. E. Starrett, D. Saumon, J. Daligault +1
In Starrett and Saumon [Phys. Rev. E 87, 013104 (2013)] a model for the calculation of electronic and ionic structures of warm and hot dense matter was described and validated. In…
Pseudoatom molecular dynamics
C. E. Starrett, J. Daligault, D. Saumon
A new approach to simulating warm and hot dense matter that combines density functional theory based calculations of the electronic structure to classical molecular dynamics simula…
The structure of warm dense matter modeled with an average atom model with ion-ion correlations
D. Saumon, C. E. Starrett, J. A. Anta +2
We present a new model of warm dense matter that represents an intermediate approach between the relative simplicity of ''one-ion'' average atom models and the more realistic but c…