Optimal packing of polydisperse hard-sphere fluids. II

We consider the consequences of keeping the total surface fixed for a polyd isperse system of N hard spheres. In contrast with a similar model [J. Zhan g , J. Chem. Phys. 110, 5318 (1999)], the Percus-Yevick and Mansoori equati ons of state work very well and do not show a breakdown. For high pressure Monte Carlo simulation we show three mechanically stable polydisperse cryst als with either a unimodal or bimodal particle-size distribution. (C) 2000 American Institute of Physics. [S0021-9606(00)50516-9].