We recast the atomic processes in a warm, dense plasma using Fermi-Dirac statistics and compare them to the rates of the usual Maxwell-Boltzmann approach of many collisional-radiative models. Population calculations show insignificant differences to calculations assuming nondegenerate free electrons of plasmas at solid density close to local thermodynamic equilibrium, but show departures in average ionization in the presence of strong photoionization. For example, we show that electron degeneracy affects the evolution of plasmas created by ultraviolet free electron laser interaction with solid targets.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/PhysRevE.91.063106 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Dynamical properties of hydrogen fluid at high pressures.
J Chem Phys
January 2025
Moscow Center for Advanced Studies, Moscow, Russia.
The properties of the hydrogen fluid at high pressures are still of interest to the scientific community. The experimentally unreachable dynamical properties could provide new insights into this field. In 2020 [Cheng et al.
View Article and Find Full Text PDFMixed Resolution-of-the-Identity Compressed Exchange for Hybrid Mixed Deterministic-Stochastic Density Functional Theory from Low to Extreme Temperatures.
J Chem Theory Comput
January 2025
Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States.
Exact exchange contributions included in density functional theory calculations have rendered excellent electronic structure results on both cold and extremely hot matter. In this work, we develop a mixed deterministic-stochastic resolution-of-the-identity compressed exchange (mRICE) method for efficient calculation of exact and hybrid electron exchange, suitable for applications alongside mixed stochastic-deterministic density functional theory. mRICE offers accurate calculations of the electronic structure at a largely reduced computation time compared to other compression algorithms, such as Lin's adaptive compressed exchange, for the warm dense matter.
View Article and Find Full Text PDFModeling of warm dense hydrogen via explicit real-time electron dynamics: Dynamic structure factors.
Phys Rev E
November 2024
Department of Physics, University of Oxford, Oxford OX1 3PU, United Kingdom.
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 electron dynamics during ion evolution. First, a semiclassical method is discussed, which is corrected based on known quantum constraints, and second, a direct computation of the density response function within the molecular dynamics. The wave-packet models are compared to PIMC and DFT-MD for the static and low-frequency behavior.
View Article and Find Full Text PDFArticle Synopsis
- The obligate intracellular parasite replicates within a compartment called the parasitophorous vacuole (PV) and utilizes a protein ingestion pathway to take in nutrients from the host cell's cytosol, initiated by the protein GRA14.
- A genome-wide CRISPR screen revealed that mutants lacking components of this ingestion pathway (GRA14, CPL, or CRT) are forced to rely more on alternative metabolic pathways to survive, such as pyrimidine and fatty acid biosynthesis.
- Analysis showed that these ingestion-deficient mutants had lower levels of key nutrients and growth defects when amino acids were scarce, indicating that the ingestion pathway plays a crucial role in nutrient acquisition during resource-limited conditions.
A pulsed power facility for studying the warm dense matter regime.
Rev Sci Instrum
October 2024
CEA, DAM, DIF, F-91297 Arpajon, France.
A pulsed power facility has been designed for studying the warm dense matter regime. It is based on the pulsed Joule heating technique, originally proposed by Korobenko and Rakhel [Int. J.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!