Work

Computation of the latent heat of the deconfinement phase transition of SU(3) Yang-Mills theory

Year: 2025

Type: conference-paper

Abstract: We investigate the thermal properties of $\mathrm{SU}(3)$ Yang-Mills theory across the deconfinement phase transition considering the framework of shifted boundary conditions in the temporal direction. By measuring the entropy density $s(T_c)/T_c^3$ on both sides of the phase transition at the critical temperature $T_c$, we can retrieve the latent heat $h$. Additionally, we compute $h$ from the discontinuity in the trace anomaly of the energy-momentum tensor. Simulations are performed at five different values of the lattice spacing, allowing us to extrapolate the results to the continuum limit. The two observables produce compatible results, giving the combined estimate $h = 1.175(10)$ in the continuum limit, achieving a precision of about 1\%. Moreover, we determine the critical temperature in physical units with permille accuracy, yielding $T_c \sqrt{t_0} = 0.24915(29)$. These results allow us to connect the confined and the deconfined phases with precision, and we present an improved computation of the Equation of State across the phase transition for temperatures between $0$ and $3.4 T_c$.

Source: International Symposium on Lattice Field Theory (LATTICE)

DOI: 10.22323/1.466.0186

Authors: Luca Virzì, Leonardo Giusti, Mitsuaki Hirasawa, Michele Pepe

Institutions: Istituto Nazionale di Fisica Nucleare, Sezione di Milano Bicocca, University of Milano-Bicocca

Language: English

Topic: Quantum Chromodynamics and Particle Interactions

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: European Commission, Yukawa Institute for Theoretical Physics, Kyoto University

Award: G8470815915