115 citations · 1k across the 36 of their papers we have counts for
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Schwinger-Keldysh effective actions for non-hydrodynamic poles and branch cuts
Andrea Amoretti, Matteo Anselmi, Daniel K. Brattan
Retarded thermal correlators, analytically continued to complex frequency, exhibit non-hydrodynamic poles and branch cuts that constrain hydrodynamics. We construct Gaussian Schwin…
The price of locality: Maxwell-Cattaneo charge transport in Schwinger-Keldysh effective field theory
Andrea Amoretti, Matteo Anselmi, Daniel K. Brattan
We determine the conditions under which the nonlinear Maxwell-Cattaneo theory of charge transport admits a local Gaussian Schwinger-Keldysh embedding with a particular modified dyn…
Staying positive: bounds for non-Gaussian noise in Schwinger-Keldysh effective field theory
Andrea Amoretti, Daniel K. Brattan
Modern effective field theories of dissipative hydrodynamics, built on the Schwinger-Keldysh (SK) formalism, include thermal noise that is not Gaussian. The resultant higher-order…