Work

Uniqueness for DLR equations of $\mathsf{Sine}_β$

Year: 2026
Type: preprint
Abstract: We prove that, for all $β>0$, the Dobrushin-Lanford-Ruelle (DLR) equations for the unit-intensity $\mathsf{Sine}_β$ point process have a unique stationary solution under a particular finite electric energy condition. Uniqueness fails if this condition is dropped. This answers a question of Dereudre-Hardy-Leblé-Maïda and gives a canonical statistical physics characterisation of $\mathsf{Sine}_β$. The main technical ingredient is a relative entropy estimate which allows us to compare the conditional distribution in a finite box of a DLR solution to a corresponding circular $β$ ensemble.
Language: English
Open Access status: green
OpenAlex ID: W7211997884
Cites: 6
Cited by: 1
Related to: 10