Dense hydrogen plasma: Comparison between models

Journal Article · Mon Sep 01 04:00:00 EDT 1997 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.56.3534· OSTI ID:542219

Clerouin, J G; Bernard, S ^[1]

---

1. CEA--Centre dEtudes de Limeil-Valenton, 94195 Villeneuve St. Georges Cedex (France)

Static and dynamical properties of the dense hydrogen plasma ({rho}{ge}2.6gcm{sup {minus}3}, 0.1{lt}T{lt}5eV) in the strongly coupled regime are compared through different numerical approaches. It is shown that simplified density-functional molecular-dynamics simulations (DFMD), without orbitals, such as Thomas-Fermi Dirac or Thomas-Fermi-Dirac-Weisz{umlt a}cker simulations give similar results to more sophisticated descriptions such as Car-Parrinello (CP), tight binding, or path-integral Monte Carlo, in a wide range of temperatures. At very low temperature, screening effects predicted by DFMD are still less pronounced than CP simulations. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 542219
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Journal Name: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics Journal Issue: 3 Vol. 56; ISSN PLEEE8; ISSN 1063-651X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
FEYNMAN PATH INTEGRAL
FUNCTIONALS
HYDROGEN
MOLECULAR DYNAMICS METHOD
MONTE CARLO METHOD
PLASMA
PLASMA DENSITY
PLASMA SIMULATION
THOMAS-FERMI MODEL