Work

Polyakov-loop phase, Roberge–Weiss periodicity and thermodynamics

Year: 2025

Type: article

Abstract: In this paper, we discuss the role of Roberge–Weiss periodicity in the thermodynamics of quantum chromodynamics at moderately high temperature, where the semi-quark-gluon plasma is expected. From the construction of the grand canonical partition function at zero and also at finite density via the canonical approach, we are able to discuss the relation between contributions of the Polyakov-loop phase and Roberge–Weiss periodicity. Then, we can conclude that the existence of Roberge–Weiss periodicity is a necessary condition to reproduce exact results at moderately high temperature.

Source: International Journal of Modern Physics A

DOI: 10.1142/s0217751x25500605

Authors: Kouji Kashiwa, Hiroaki Kouno

Institutions: Fukuoka Institute of Technology, Saga University

Language: English

Topic: High-Energy Particle Collisions Research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: Japan Society for the Promotion of Science

Award: G8980801056