Extension of the Ornstein-Zernike Theory of the Critical Region

We derive a new relationship between the shape of the critical isotherm and the range of the two-particle correlation function.

DOI:https://doi.org/10.1103/PhysRevLett.20.533

^*Permanent address: Polytechnic Institute of Brooklyn, Brooklyn, N. Y. 11201.
^†Laboratory associated with Centre National de la Recherche Scientifique (postal address: Laboratoire de Physique Théorique et Hautes Energies, Bât. 211, Faculté des Sciences, 91 Orsay, France).