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Field Theory Approaches to Relativistic Hydrodynamics

Entropy, 2022
Just as non-relativistic fluids, oftentimes we find relativistic fluids in situations where random fluctuations cannot be ignored, with thermal and turbulent fluctuations being the most relevant examples.
Nahuel Mirón Granese, Alejandra Kandus, Esteban Calzetta   +2 more
doaj   +4 more sources

Hydrodynamics, anomaly inflow and bosonic effective field theory [PDF]

Journal of High Energy Physics
Euler hydrodynamics of perfect fluids can be viewed as an effective bosonic field theory. In cases when the underlying microscopic system involves Dirac fermions, the quantum anomalies should be properly described.
Alexander G. Abanov, Andrea Cappelli
doaj   +5 more sources

U(1) quasi-hydrodynamics: Schwinger-Keldysh effective field theory and holography [PDF]

Journal of High Energy Physics, 2023
We study the quasi-hydrodynamics of a system with a softly broken U(1) global symmetry using effective field theory (EFT) and holographic methods. In the gravity side, we consider a holographic Proca model in the limit of small bulk mass, which is ...
Matteo Baggioli, Yanyan Bu, Vaios Ziogas
doaj   +3 more sources

Schwinger-Keldysh effective field theory for stable and causal relativistic hydrodynamics [PDF]

Journal of High Energy Physics
We construct stable and causal effective field theories (EFTs) for describing statistical fluctuations in relativistic diffusion and relativistic hydrodynamics.
Akash Jain, Pavel Kovtun
doaj   +3 more sources

Effective field theory for hydrodynamics without boosts [PDF]

SciPost Physics, 2021
We formulate the Schwinger-Keldysh effective field theory of hydrodynamics without boost symmetry. This includes a spacetime covariant formulation of classical hydrodynamics without boosts with an additional conserved particle/charge current coupled to ...
Jay Armas, Akash Jain
doaj   +2 more sources

Effective field theory for non-relativistic hydrodynamics

Journal of High Energy Physics, 2020
We write down a Schwinger-Keldysh effective field theory for non-relativistic (Galilean) hydrodynamics. We use the null background construction to covariantly couple Galilean field theories to a set of background sources.
Akash Jain
doaj   +3 more sources

Hydrodynamic effective field theories with discrete rotational symmetry

Journal of High Energy Physics, 2022
We develop a hydrodynamic effective field theory on the Schwinger-Keldysh contour for fluids with charge, energy, and momentum conservation, but only discrete rotational symmetry.
Xiaoyang Huang, Andrew Lucas
doaj   +2 more sources

Hydrodynamics, spin currents and torsion

Journal of High Energy Physics, 2023
We construct the canonical constitutive relations for a fluid description of a system with a spin current, valid in an arbitrary number of dimensions in the absence of parity breaking or time reversal breaking terms. Our study encompasses the hydrostatic
A. D. Gallegos, U. Gürsoy, A. Yarom
doaj   +1 more source

Feynman rules for forced wave turbulence

Journal of High Energy Physics, 2023
It has long been known that weakly nonlinear field theories can have a late-time stationary state that is not the thermal state, but a wave turbulent state with a far-from-equilibrium cascade of energy.
Vladimir Rosenhaus, Michael Smolkin
doaj   +1 more source

Determining all thermodynamic transport coefficients for an interacting large N quantum field theory

Journal of High Energy Physics, 2023
Thermodynamic transport coefficients can be calculated directly from quantum field theory without requiring analytic continuation to real time. We determine all second-order thermodynamic transport coefficients for the uncharged N-component massless ...
Max Weiner, Paul Romatschke
doaj   +1 more source