DISCUSSION ON RANDOM PHASE APPROXIMATION OF HYPERNETTED CHAIN METHOD
关于超纲链方法中无规相近似的讨论

In discussion of the many body effect of homogenenus Fermion system with hypernetted chain method, RPA is always applied and original wave function is taken as a Fermi sphere distribution function. In this paper, the validity of this method is investigated and the relation between the valid range of this method and the properties of potential and density is obtained.