Signature of helium segregation in hydrogen-helium mixtures
نویسندگان
چکیده
منابع مشابه
Hydrogen-Helium Mixtures at High Pressure
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 ...
متن کاملHydrogen-Helium Mixtures in the Interiors of Giant Planets
Equilibrium properties of hydrogen-helium mixtures under conditions similar to the interior of giant gas planets are studied by means of first principle density functional molecular dynamics simulations. We investigate the molecular and atomic fluid phase of hydrogen with and without the presence of helium for densities between ρ = 0.19 g cm and ρ = 0.66 g cm and temperatures from T = 500K to T...
متن کاملPhase separation in hydrogen-helium mixtures at Mbar pressures.
The properties of hydrogen-helium mixtures at Mbar pressures and intermediate temperatures (4000 to 10000 K) are calculated with first-principles molecular dynamics simulations. We determine the equation of state as a function of density, temperature, and composition and, using thermodynamic integration, we estimate the Gibbs free energy of mixing, thereby determining the temperature, at a give...
متن کاملExchange in bcc Helium Mixtures
don) 90, 791 (1967). J. M. Deutch and R. Zwanzig, J. Chem. Phys. 4~6 1612 (1967). J. Swift, Phys. Rev. 173, 257 (1968). See, for example, the article by D. Sette, in Physics of Simple Liquids, edited by N. H. V. Temperley, J. S. Rowlinson, and G. S. Rushbrooke (North-Holland Publishing Co. , Amsterdam, 1968), p. 327 and references cited therein. D. Atack and O. K. Rice, J. Chem. Phys. 22, 382 (...
متن کاملThe Dynamics and Helium Distribution in Hydrogen-helium Fluid Planets
In the preceding paper (Paper I) we discussed the thermodynamic and microscopic transport properties of hydrogen-helium fluid mixtures. These results are used in the present paper for a semiquantitative analysis of the thermal and compositional history of an evolving hydrogenhelium planet such as Jupiter or Saturn. First, the evolution of a homogeneous planet with no first-order phase transitio...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2011
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.84.165110