Finite-size effects on the QCD critical point
Gyozo Kovacs
- Date
- February 9 (Mon) 15:30 - 17:30, 2026 (JST)
- Speaker
-
- Gyozo Kovacs (Research Fellow, Institute of Theoretical Physics, University of Wroclaw, Poland)
- Venue
- Language
- English
- Host
- Tetsuo Hatsuda
[Joint seminar hosted by QMS Team (iTHEMS) and FTR Team (R-CCS)]
While effective approaches are important tools in the search for the QCD critical point, the physical systems they describe differ in several aspects from those in heavy-ion collisions and from unextrapolated lattice QCD. A primary discrepancy is the system size, which is infinite only in effective model calculations. Various implementations exist to account for the resulting finite-size effects. Beyond the frequently used methods, we present a comprehensive mean-field approach that allows for both infinite- and finite-size calculations, even within a complex parameter space. We discuss the general impact of finite-size effects on key observables, such as conserved charge fluctuations, and on the analytic structure of the thermodynamic potential.
15:30-16:30 Lecture
16:30-17:30 Discussion with coffee
References
- Győző Kovács, Pok Man Lo, Krzysztof Redlich, Chihiro Sasaki, Finite size effects and scaling properties of charge fluctuations, arXiv: 2510.24507
- Győző Kovács, Péter Kovács, Pok Man Lo, Krzysztof Redlich, György Wolf, Sensitivity of finite size effects to the boundary conditions and the vacuum term, Phys.Rev.D 108, 7, 076010 (2023), doi: 10.1103/PhysRevD.108.076010
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