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Path integral Monte Carlo calculations of dense hydrogen and helium thermodynamics

Published online by Cambridge University Press:  20 December 2006

P. R. LEVASHOV
Affiliation:
Institute for High Energy Densities, Russian Academy of Sciences, Izhorskaya 13/19, Moscow 125412, Russia ([email protected])
V. S. FILINOV
Affiliation:
Institute for High Energy Densities, Russian Academy of Sciences, Izhorskaya 13/19, Moscow 125412, Russia ([email protected])
M. BONITZ
Affiliation:
Christian-Albrechts-Universität zu Kiel, Institut für Theoretische Physik und Astrophysik, Leibnizstr. 15, 24098 Kiel, Germany
V. E. FORTOV
Affiliation:
Institute for High Energy Densities, Russian Academy of Sciences, Izhorskaya 13/19, Moscow 125412, Russia ([email protected])

Abstract

This paper is devoted to first-principles calculations of hydrogen and helium thermodynamics. We use the direct path integral Monte Carlo method to compute isochors and isotherms in a wide range of parameters in comparison with available theoretical and experimental results. New results for hydrogen and hydrogen–helium plasmas with the mass concentration of helium $Y\,{=}\,0.988$ are analysed with the help of a model based on the chemical picture.

Type
Papers
Copyright
2006 Cambridge University Press

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