Friday, July 13, 2012

1201.2771 (A. Santos et al.)

Rational-function approximation for fluids interacting via piece-wise
constant potentials
   [PDF]

A. Santos, S. B. Yuste, M. López de Haro
The structural properties of fluids whose molecules interact via potentials with a hard-core plus n piece-wise constant sections of different widths and heights are derived using a (semi-analytical) rational-function approximation method. The results are illustrated for the cases of a square-shoulder plus square-well potential and a shifted square-well potential and compared both with simulation data and with those that follow from the (numerical) solutions of the Percus-Yevick integral equation.
View original: http://arxiv.org/abs/1201.2771

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