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Two lectures on Yang-Lee edge singularity and analytic structure of QCD equation of state

Vladimir V. Skokov

SciPost Phys. Lect. Notes 91 (2025) · published 7 March 2025

Abstract

These lecture notes, prepared for the 2024 XQCD PhD, provide an introduction to the analytic structure of an equation of state near a second-order phase transition and its most prominent landmark: the Yang-Lee edge singularity. In addition to discussing general properties, the notes review recent theoretical progress in locating the QCD critical point by tracking the trajectory of the Yang-Lee edge singularity.


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