Mathematics > Probability
[Submitted on 17 Dec 2018]
Title:The one-dimensional log-gas free energy has a unique minimiser
View PDFAbstract:We prove that, at every positive temperature, the infinite-volume free energy of the one dimensional log-gas, or beta-ensemble, has a unique minimiser, which is the Sine-beta process arising from random matrix theory. We rely on a quantitative displacement convexity argument at the level of point processes, and on the screening procedure introduced by Sandier-Serfaty.
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