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cond-mat.str-el2026
Real-time Dyson expansion for the nonequilibrium approximation: Correlated spectra and dependence on the reference propagator
Erik Schroedter, Jan-Philip Joost, Michael Bonitz +1
Electronic spectra provide direct insight into the excitations and correlations of condensed matter systems. Their description requires electron correlations beyond mean field. In…
cond-mat.str-el2026
Influence of Markovianity and self-consistency on time-resolved spectral functions of driven quantum systems
Thomas Blommel, M. Rey Lambert, Michael A. Kurniawan +2
We present a systematic comparison of the real-time Dyson expansion (RTDE) with established non-equilibrium Green's function approaches for simulating driven, interacting quantum s…