The viscosity to entropy ratio: From string theory motivated bounds to warm dense matter
Abstract
Here, we study the ratio of viscosity to entropy density in Yukawa one-component plasmas as a function of coupling parameter at fixed screening, and in realistic warm dense matter models as a function of temperature at fixed density. In these two situations, the ratio is minimized for values of the coupling parameters that depend on screening, and for temperatures that in turn depend on density and material. In this context, we also examine Rosenfeld arguments relating transport coefficients to excess reduced entropy for Yukawa one-component plasmas. For these cases we show that this ratio is always above the lower-bound conjecture derived from string theory ideas.
- Authors:
-
- CEA, DAM, DIF, Arpajon (France)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Univ. di Padova, Padova (Italy); DEMOCRITOS National Simulation Center, Trieste (Italy)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1249122
- Report Number(s):
- LLNL-JRNL-655596
Journal ID: ISSN 1574-1818
- Grant/Contract Number:
- AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- High Energy Density Physics
- Additional Journal Information:
- Journal Volume: 12; Journal Issue: C; Journal ID: ISSN 1574-1818
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE; 70 PLASMA PHYSICS AND FUSION; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; viscosity; entropy density; Yukawa one-component plasmas; warm dense matter
Citation Formats
Faussurier, G., Libby, S. B., and Silvestrelli, P. L. The viscosity to entropy ratio: From string theory motivated bounds to warm dense matter. United States: N. p., 2014.
Web. doi:10.1016/j.hedp.2014.06.001.
Faussurier, G., Libby, S. B., & Silvestrelli, P. L. The viscosity to entropy ratio: From string theory motivated bounds to warm dense matter. United States. https://doi.org/10.1016/j.hedp.2014.06.001
Faussurier, G., Libby, S. B., and Silvestrelli, P. L. Fri .
"The viscosity to entropy ratio: From string theory motivated bounds to warm dense matter". United States. https://doi.org/10.1016/j.hedp.2014.06.001. https://www.osti.gov/servlets/purl/1249122.
@article{osti_1249122,
title = {The viscosity to entropy ratio: From string theory motivated bounds to warm dense matter},
author = {Faussurier, G. and Libby, S. B. and Silvestrelli, P. L.},
abstractNote = {Here, we study the ratio of viscosity to entropy density in Yukawa one-component plasmas as a function of coupling parameter at fixed screening, and in realistic warm dense matter models as a function of temperature at fixed density. In these two situations, the ratio is minimized for values of the coupling parameters that depend on screening, and for temperatures that in turn depend on density and material. In this context, we also examine Rosenfeld arguments relating transport coefficients to excess reduced entropy for Yukawa one-component plasmas. For these cases we show that this ratio is always above the lower-bound conjecture derived from string theory ideas.},
doi = {10.1016/j.hedp.2014.06.001},
journal = {High Energy Density Physics},
number = C,
volume = 12,
place = {United States},
year = {Fri Jul 04 00:00:00 EDT 2014},
month = {Fri Jul 04 00:00:00 EDT 2014}
}
Web of Science
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Works referencing / citing this record:
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