Előadó: Kovács Győző (Wrocław University és Wigner FK)
Előadásának címe: Locating the critical point in finite systems
Dátum: 2026. szeptember 14. hétfő d.e. 11 óra
Helyszín: RMI III. ép. Tanácsterem
Összefoglaló:
In a finite system no genuine critical behavior can be observed, which makes the identification of an infinite-volume critical point from finite-size calculations a highly nontrivial task. We investigate several methods for locating criticality at finite sizes based on conserved-charge fluctuations and the distribution of the Lee–Yang zeros across different volumes. These methods are tested within a mean-field effective model of QCD matter that reproduces finite-size effects and finite-size scaling, while exhibiting a critical point in the thermodynamic limit. We also show that a careful treatment of corrections from irrelevant operators is crucial for the accurate determination of the critical point.
