On the Relationship Between Pair Potentials and Distribution Functions

摘要

It is demonstrated that the relationship between pair potentials and distribution functions is experimentally ambiguous for dense fluids. Calculations in the Percus-Yevic approximation show that qualitatively different potentials can be chosen which predict pair distributions which are virtually indistinguishable, and vice-versa. In addition, if the nearest neighbor interaction is predominant, it appears that the assumption of symmetric interactions may not be valid in liquids such as mercury and tin. (Author)