<span>Many-body perturbation theory for driven dissipative quasiparticle flows and fluctuations</span>

Author(s): Thomas Blommel, Enrico Perfetto, Gianluca Stefanucci, and Vojtech VlcekWe present a unified many-body perturbation theory for open quantum systems that treats dissipation, correlations, and external driving on equal footing. Using a Keldysh–Lindblad formalism, we introduce a diagrammatic treatment of dissipative interaction lines representing quasiparticle flows and fl…[Phys. Rev. Lett.] Published Thu May 21, 2026