Causal and Stable Relativistic Hydrodynamic Fluctuations
Abstract
When two nuclei collide close to the speed of light, a fluid state known as the quark-gluon plasma is formed. Attempts to understand the dynamics of this fluid have generated significant research into dissipative relativistic fluid dynamics. The fluctuation-dissipation theorem implies that any dissipative dynamical system will also experience thermal fluctuations; however, such fluctuations are not typically included in the modeling of the quark-gluon plasma. This work discusses a new method of determining whether a hydrodynamic framework is consistent with thermal fluctuations. We develop a new method for calculating the noise correlator of relativistic hydrodynamic systems and apply it to Israel-Stewart theory in a general hydrodynamic frame.
Cite
@article{arxiv.2402.13119,
title = {Causal and Stable Relativistic Hydrodynamic Fluctuations},
author = {Nicki Mullins and Mauricio Hippert and Jorge Noronha and Lorenzo Gavassino},
journal= {arXiv preprint arXiv:2402.13119},
year = {2024}
}
Comments
4 pages. Contribution to the proceedings of the 9th Workshop for Young Scientists on the Physics of Ultra-relativistic Nucleus-Nucleus Collisions (Hot Quarks 2022)