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 - M.\u2009M.\u2009D. is partially supported by a Sloan Research Fellowship provided by the Alfred P. Sloan Foundation, NSF Grant No. DMS-1812826, a Discovery Grant administered by Vanderbilt University, and by a Dean\u2019s Faculty Fellowship. V.\u2009H. was funded (full or in-part) by the University of Texas at San Antonio, Office of the Vice President for Research, Economic Development, and Knowledge Enterprise. V.\u2009H. acknowledges partial support by NSF Grants No. DMS-1614797 and No. DMS-1810687. J.\u2009N. is partially supported by the U.S. Department of Energy, Office of Science, Office for Nuclear Physics under Award No. DE-SC0021301.
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 -