Hydrogen-Helium Mixtures at High Pressure

Details Hydrogen-Helium Mixtures at High Pressure Hydrogen-Helium Mixtures at High Pressure

2004-11-17

arxiv.org/abs/cond-mat/0411458v1

Physics

Condensed Matter

Materials Science

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

Scientific paper

10.1007/s10909-005-5485-8

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.

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