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dynamical mean-field theory 1Keldysh formalism 1nonequilibrium dynamics 1tensor train solvers 1two-particle correlation functions 1vertex corrections 1

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1 paper

cond-mat.str-el2026

Generalized Keldysh formalism for nonequilibrium correlation functions and its application to fluctuation dynamics

Ken Inayoshi, Hiroshi Shinaoka, Yuta Murakami

The paper presents a generalized Keldysh formalism with a virtual probe field that enables efficient computation of nonequilibrium two‑particle correlation functions, including ver…