TY - JOUR
T1 - Nonlinear Constraints on Relativistic Fluids Far from Equilibrium
AU - Bemfica, Fábio S.
AU - Disconzi, Marcelo M.
AU - Hoang, Vu
AU - Noronha, Jorge
AU - Radosz, Maria
N1 - Publisher Copyright:
© 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.
PY - 2021/6/4
Y1 - 2021/6/4
N2 - New constraints are found that must necessarily hold for Israel-Stewart-like theories of fluid dynamics to be causal far away from equilibrium. Conditions that are sufficient to ensure causality, local existence, and uniqueness of solutions in these theories are also presented. Our results hold in the full nonlinear regime, taking into account bulk and shear viscosities (at zero chemical potential), without any simplifying symmetry or near-equilibrium assumptions. Our findings provide fundamental constraints on the magnitude of viscous corrections in fluid dynamics far from equilibrium.
AB - New constraints are found that must necessarily hold for Israel-Stewart-like theories of fluid dynamics to be causal far away from equilibrium. Conditions that are sufficient to ensure causality, local existence, and uniqueness of solutions in these theories are also presented. Our results hold in the full nonlinear regime, taking into account bulk and shear viscosities (at zero chemical potential), without any simplifying symmetry or near-equilibrium assumptions. Our findings provide fundamental constraints on the magnitude of viscous corrections in fluid dynamics far from equilibrium.
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U2 - 10.1103/PhysRevLett.126.222301
DO - 10.1103/PhysRevLett.126.222301
M3 - Article
C2 - 34152165
AN - SCOPUS:85107931735
SN - 0031-9007
VL - 126
JO - Physical review letters
JF - Physical review letters
IS - 22
M1 - 222301
ER -