| Issue |
EPJ Web Conf.
Volume 296, 2024
30th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (Quark Matter 2023)
|
|
|---|---|---|
| Article Number | 13001 | |
| Number of page(s) | 4 | |
| Section | New Theory | |
| DOI | https://doi.org/10.1051/epjconf/202429613001 | |
| Published online | 26 June 2024 | |
https://doi.org/10.1051/epjconf/202429613001
A new approach to stochastic relativistic fluid dynamics from information flow
1 Illinois Center for Advanced Studies of the Universe & Department of Physics, University of Illinois Urbana-Champaign, Urbana, IL 61801, USA
2 Department of Mathematics, Vanderbilt University, Nashville, TN, USA
* e-mail: nickim2@illinois.edu
** e-mail: hippert@illinois.edu
*** e-mail: lorenzo.gavassino@vanderbilt.edu
**** e-mail: jn0508@illinois.edu
Published online: 26 June 2024
We present a new general formalism for introducing thermal fluctuations in relativistic hydrodynamics, which incorporates recent developments on the causality and stability of relativistic hydrodynamic theories. Our approach is based on the information current, which measures the net amount of information carried by perturbations around equilibrium in a relativistic many-body system. The resulting noise correlators are guaranteed to be observer-independent for thermodynamically stable models. We obtain an effective action within our formalism and discuss its properties.
© The Authors, published by EDP Sciences, 2024
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