Relativistic Shock Waves in Viscous Gluon Matter

2009/02/28 by I. Bouras, E. Molnar, E. Molnár +9 · 6 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cascade #Cosmology and Gravitation Theories #Gluon #High-Energy Particle Collisions Research #Mechanics #Nuclear physics #Particle physics #Parton #Physics #Plasma #Quantum chromodynamics #Quantum electrodynamics #Quantum mechanics #Quark–gluon plasma #Shear viscosity #Shock wave #Viscosity #Viscous liquid #Volume viscosity #hep-ph #nucl-th

paper · pdf · doi:10.1103/physrevlett.103.032301

published as Phys.Rev.Lett.103:032301,2009 · Version as published in PRL 103, 032301 (2009). 4 pages, 4 figures

openalex publication_date 2009/07/15 · arxiv created 2009/07/22 · arxiv updated 2010/04/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We solve the relativistic Riemann problem in viscous gluon matter employing a microscopic parton cascade. We demonstrate the transition from ideal to viscous shock waves by varying the shear viscosity to entropy density ratio eta/s from zero to infinity. We show that an eta/s ratio larger than 0.2 prevents the development of well-defined shock waves on time scales typical for ultrarelativistic heavy-ion collisions. Comparisons with viscous hydrodynamic calculations confirm our findings.

Citations

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• La agilidad de la escritura pública telemática
• Nonstationary irreversible thermodynamics: A causal relativistic theory
• The Thermodynamics of Irreversible Processes. III. Relativistic Theory of the Simple Fluid
• Thickness of a mildly relativistic collisional shock wave
• Measurement of jet modification at RHIC
• Collective flow signals the quark–gluon plasma

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