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Title: Ab Initio Studies on the Stopping Power of Warm Dense Matter with Time-Dependent Orbital-Free Density Functional Theory

Abstract

Here, electronic transport properties of warm dense matter, such as electrical/thermal conductivities and nonadiabatic stopping power, are of particular interest to geophysics, planetary science, astrophysics, and inertial confinement fusion (ICF). One example is the α-particle stopping power of dense deuterium–tritium (DT) plasmas, which must be precisely known for current small-margin ICF target designs to ignite. We have developed a time-dependent orbital-free density functional theory (TD-OF-DFT) method for ab initio investigations of the charged-particle stopping power of warm dense matter. Our current dependent TD-OF-DFT calculations have reproduced the recently well-characterized stopping power experiment in warm dense beryllium. Forα-particle stopping in warm and solid-density DT plasmas, the ab initio TD-OF-DFT simulations show a lower stopping power up to ~25% in comparison with two stopping-power models widely used in the high-energy-density physics community.

Authors:
 [1];  [2];  [1];  [2];  [2]
  1. Univ. of Rochester, Rochester, NY (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Univ. of Rochester, Rochester, NY (United States). Lab. for Laser Energetics; Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
Contributing Org.:
Laboratory for Laser Energetics, University of Rochester
OSTI Identifier:
1479956
Alternate Identifier(s):
OSTI ID: 1475096; OSTI ID: 1476999
Report Number(s):
2018-62, 1-438, 2-396; LA-UR-18-23762
Journal ID: ISSN 0031-9007; PRLTAO; 2018-62, 1438, 2396
Grant/Contract Number:  
NA0001944; AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 121; Journal Issue: 14; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Ding, Y. H., White, A. J., Hu, S. X., Certik, O., and Collins, L. A. Ab Initio Studies on the Stopping Power of Warm Dense Matter with Time-Dependent Orbital-Free Density Functional Theory. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.121.145001.
Ding, Y. H., White, A. J., Hu, S. X., Certik, O., & Collins, L. A. Ab Initio Studies on the Stopping Power of Warm Dense Matter with Time-Dependent Orbital-Free Density Functional Theory. United States. doi:10.1103/PhysRevLett.121.145001.
Ding, Y. H., White, A. J., Hu, S. X., Certik, O., and Collins, L. A. Mon . "Ab Initio Studies on the Stopping Power of Warm Dense Matter with Time-Dependent Orbital-Free Density Functional Theory". United States. doi:10.1103/PhysRevLett.121.145001. https://www.osti.gov/servlets/purl/1479956.
@article{osti_1479956,
title = {Ab Initio Studies on the Stopping Power of Warm Dense Matter with Time-Dependent Orbital-Free Density Functional Theory},
author = {Ding, Y. H. and White, A. J. and Hu, S. X. and Certik, O. and Collins, L. A.},
abstractNote = {Here, electronic transport properties of warm dense matter, such as electrical/thermal conductivities and nonadiabatic stopping power, are of particular interest to geophysics, planetary science, astrophysics, and inertial confinement fusion (ICF). One example is the α-particle stopping power of dense deuterium–tritium (DT) plasmas, which must be precisely known for current small-margin ICF target designs to ignite. We have developed a time-dependent orbital-free density functional theory (TD-OF-DFT) method for ab initio investigations of the charged-particle stopping power of warm dense matter. Our current dependent TD-OF-DFT calculations have reproduced the recently well-characterized stopping power experiment in warm dense beryllium. Forα-particle stopping in warm and solid-density DT plasmas, the ab initio TD-OF-DFT simulations show a lower stopping power up to ~25% in comparison with two stopping-power models widely used in the high-energy-density physics community.},
doi = {10.1103/PhysRevLett.121.145001},
journal = {Physical Review Letters},
number = 14,
volume = 121,
place = {United States},
year = {2018},
month = {10}
}

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