Structure factors of polydisperse systems of hard spheres: A comparison of Monte Carlo simulations and Percusndash;Yevick theory

摘要

We present Monte Carlo (MC) simulations of the structure factors of polydisperse hardhyphen;sphere fluids. The simulations were carried out for 108 particles and packing fractions up to fgr;=0.5. The size distribution of the particles was chosen randomly from a loghyphen;normal distribution. The MC results are compared with predictions obtained using Percusndash;Yevick approximation. It is found that for all but the highest densities and the highest polydispersities studied, the Percusndash;Yevick approximation provides a satisfactory description of the MC data.