Hydrogen-Helium Mixtures at High Pressure

Abstract

The properties of hydrogen-helium mixtures at high pressure are crucial to address important questions about the interior of Giant planets e.g. whether Jupiter has a rocky core and did it emerge via core accretion? Using path integral Monte Carlo simulations, we study the properties of these mixtures as a function of temperature, density and composition. The equation of state is calculated and compared to chemical models. We probe the accuracy of the ideal mixing approximation commonly used in such models. Finally, we discuss the structure of the liquid in terms of pair correlation functions.

Proceedings article of the 5th Conference on Cryocrystals and Quantum Crystals in Wroclaw, Poland, submitted to J. Low. Temp. Phys. (2004)

References in corpus (10)

• HST Time-Series Photometry of the Transiting Planet of HD 209458
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• Path Integral Monte Carlo Calculation of the Deuterium Hugoniot
• Molecular Dissociation in Hot, Dense Hydrogen
• Phase Separation in Giant Planets: Inhomogeneous Evolution of Saturn
• Path Integral Monte Carlo Simulation of the Low-Density Hydrogen Plasma
• Effects of Helium Phase Separation on the Evolution of Extrasolar Giant Planets
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