Another Derivation of a Sum Rule for the Two-Dimensional Two-Component Plasma

B. Jancovici, P. Kalinay, L. Samaj

In a two-dimensional two-component plasma, the second moment of the number density correlation function has the simple value $\{12\pi [1-(\Gamma /4){]}^2{\}}^{-1}$, where $\Gamma$ is the dimensionl…