Equation of State of the Hard-Sphere Crystal

Details Equation of State of the Hard-Sphere Crystal Equation of State of the Hard-Sphere Crystal

1996-05-27

arxiv.org/abs/cond-mat/9605169v1

Physics

Condensed Matter

6 pages, latex, 5 figures available upon request: (rascon@fluid1.fmc.uam.es) To be appeared in Phys.Rev.E, June

Scientific paper

10.1103/PhysRevE.53.5698

A new approach to the averaged two-particle distribution function of a crystalline phase is presented. It includes an indirect check of the merit of the Gaussian approximation for the local density and a new way to inferring values of the thermodynamic variables from simulation data. The equation of state and the compressibility of the hard-sphere FCC crystal is computed from Tarazona free energy density functional [Phys. Rev. A {\bf 31}, 2672 (1985)]. They are in excellent agreement with simulation results over the physical range of densities up to almost close packing. We also include the comparison with the results obtained by two other functional approaches which are also excellent.

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