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Non-universality of hydrodynamics
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We investigate the effects of stochastic interactions on hydrodynamic correlation functions using the Schwinger-Keldysh effective field theory. We identify new "stochastic transport coefficients" that are invisible in the classical constitutive relations, but nonetheless affect the late-time behaviour of hydrodynamic correlation functions through loop corrections. These results indicate that classical transport coefficients do not provide a universal characterisation of long-distance, late-time correlations even within the framework of fluctuating hydrodynamics.
Forward citations
Cited by 3 Pith papers
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Schwarzian quantum corrections to shear correlators of the near-extremal Reissner-Nordstr\"om-AdS black hole
Schwarzian quantum fluctuations raise the shear viscosity of near-extremal Reissner-Nordström-AdS4 black holes above s/4π by a positive O(1/(CT)^2) correction and are argued to lift the classical T=0 gapless shear mode.
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Gaussian non relativistic spontaneously stochastic hydrodynamics
The paper proposes that non-relativistic incompressible hydrodynamics is the infrared limit of a Gaussian stochastic theory, with compressible-scale counterterms generating spontaneous stochasticity and anomalous dissipation.
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Comparison between Causal and Acausal Diffusion: a Schwinger-Keldysh Effective Field Theory Perspective
One-loop real-time density correlations in causal diffusion reduce to known acausal results in the overdamped limit and yield a new universal scaling function in the underdamped limit.
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