Entropy of the QCD Plasma

1999/06/30 by Jean-Paul Blaizot, J. -P. Blaizot, Edmond Iancu +3 · 215 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Entropy (arrow of time) #High-Energy Particle Collisions Research #Lattice (music) #Lattice field theory #Mathematical physics #Particle physics #Physics #Plasma #Propagator #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #Quark–gluon plasma #Statistical physics #hep-lat #hep-ph

paper · pdf · doi:10.1103/physrevlett.83.2906

published in Physical Review Letters 83(15), 2906-2909 (American Physical Society) · 12 pages, 3 figures, REVTEX (minor modifications)

arxiv created 1999/08/11 · openalex publication_date 1999/10/11 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Self-consistent approximations in terms of fully dressed propagators provide a simple expression for the entropy of an ultrarelativistic plasma, which isolates the contribution of the elementary excitations as a leading contribution. Further approximations, whose validity is checked on a soluble model involving a scalar field, allow us to calculate the entropy of the QCD plasma. We obtain an accurate description of lattice data for purely gluonic QCD, down to temperatures of about twice the transition temperature.

Citations

• Free energy of QCD at high temperature

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