3 papers
hep-th2026
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…
cond-mat.stat-mech2026
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…
hep-th2025
A new web of dualities from Majorana Fermions
Andrea Amoretti, Matteo Anselmi, Daniel K. Brattan
We explore new infrared dualities in -dimensional quantum field theories involving Majorana fermions. Building on the recently proposed operator-deformation approach to boso…