Abstract
In a two-dimensional, two-component plasma, the second moment of the density correlation function has the simple value {12π[1−(Γ/4)]2}−1, where Γ is the dimensionless coupling constant. This result is derived by using analogies with critical systems.
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Jancovici, B. A Sum Rule for the Two-Dimensional Two-Component Plasma. Journal of Statistical Physics 100, 201–207 (2000). https://doi.org/10.1023/A:1018691712501
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DOI: https://doi.org/10.1023/A:1018691712501