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Title: Extent of validity of the hydrodynamic description of ions in dense plasmas

Abstract

We show that the hydrodynamic description can be applied to modeling the ionic response in dense plasmas for a wide range of length scales that are experimentally accessible. Using numerical simulations for the Yukawa model, we find that the maximum wave number k{sub max} at which the hydrodynamic description applies is independent of the coupling strength, given by k{sub max}{lambda}s{approx_equal}0.43, where {lambda}{sub s} is the ionic screening length. Our results show that the hydrodynamic description can be used for interpreting x-ray scattering data from fourth generation light sources and high power lasers. In addition, our investigation sheds new light on how the domain of validity of the hydrodynamic description depends on both the microscopic properties and the thermodynamic state of fluids in general.

Authors:
;  [1];  [2]
  1. Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU (United Kingdom)
  2. Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
Publication Date:
OSTI Identifier:
21560001
Resource Type:
Journal Article
Journal Name:
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics (Print)
Additional Journal Information:
Journal Volume: 83; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevE.83.015401; (c) 2011 American Institute of Physics; Journal ID: ISSN 1539-3755
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPUTERIZED SIMULATION; FLUIDS; HYDRODYNAMIC MODEL; IONS; LASERS; LENGTH; LIGHT SOURCES; PLASMA DENSITY; SCREENING; X-RAY DIFFRACTION; CHARGED PARTICLES; COHERENT SCATTERING; DIFFRACTION; DIMENSIONS; MATHEMATICAL MODELS; PARTICLE MODELS; RADIATION SOURCES; SCATTERING; SIMULATION; STATISTICAL MODELS; THERMODYNAMIC MODEL

Citation Formats

Mithen, James P, Gregori, Gianluca, and Daligault, Jerome. Extent of validity of the hydrodynamic description of ions in dense plasmas. United States: N. p., 2011. Web. doi:10.1103/PHYSREVE.83.015401.
Mithen, James P, Gregori, Gianluca, & Daligault, Jerome. Extent of validity of the hydrodynamic description of ions in dense plasmas. United States. https://doi.org/10.1103/PHYSREVE.83.015401
Mithen, James P, Gregori, Gianluca, and Daligault, Jerome. 2011. "Extent of validity of the hydrodynamic description of ions in dense plasmas". United States. https://doi.org/10.1103/PHYSREVE.83.015401.
@article{osti_21560001,
title = {Extent of validity of the hydrodynamic description of ions in dense plasmas},
author = {Mithen, James P and Gregori, Gianluca and Daligault, Jerome},
abstractNote = {We show that the hydrodynamic description can be applied to modeling the ionic response in dense plasmas for a wide range of length scales that are experimentally accessible. Using numerical simulations for the Yukawa model, we find that the maximum wave number k{sub max} at which the hydrodynamic description applies is independent of the coupling strength, given by k{sub max}{lambda}s{approx_equal}0.43, where {lambda}{sub s} is the ionic screening length. Our results show that the hydrodynamic description can be used for interpreting x-ray scattering data from fourth generation light sources and high power lasers. In addition, our investigation sheds new light on how the domain of validity of the hydrodynamic description depends on both the microscopic properties and the thermodynamic state of fluids in general.},
doi = {10.1103/PHYSREVE.83.015401},
url = {https://www.osti.gov/biblio/21560001}, journal = {Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics (Print)},
issn = {1539-3755},
number = 1,
volume = 83,
place = {United States},
year = {Sat Jan 15 00:00:00 EST 2011},
month = {Sat Jan 15 00:00:00 EST 2011}
}