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Staying positive: bounds for non-Gaussian noise in Schwinger-Keldysh effective field theory

Amoretti, Andrea et al.
arXiv (All) · Papers
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high-energy-physics-theorystatistical-mechanics
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 noise vertices are constrained by symmetries, but otherwise treated as free parameters. We show explicitly that symmetry
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