Sharpness of the logarithmic inverse-temperature threshold for uniform separation

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Let (βn)(\beta_n) be a sequence of inverse temperatures, and consider the Coulomb gas configurations at these temperatures. Sharpness conjecture. If almost sure uniform separation holds for some sequence of inverse temperatures (βn)(\beta_n), then necessarily

βnclogn\beta_n\ge c\log n

for some constant c>0c>0. This predicts that the logarithmic scale in the uniform-separation theorem is necessary, although the statement does not specify the dependence of cc on the model or the precise meaning of uniform separation beyond the referenced theorem.

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Primary source

Yacin Ameur and José Luis Romero, “The planar low temperature Coulomb gas: separation and equidistribution”, arXiv:2010.10179 (2022).

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