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cond-mat.str-el2014★ 13 cited
From thermal equilibrium to nonequilibrium quench dynamics: A conserving approximation for the interacting resonant level
Yuval Vinkler-Aviv, Avraham Schiller, Frithjof B. Anders
We develop a low-order conserving approximation for the interacting resonant-level model (IRLM), and apply it to (i) thermal equilibrium, (ii) nonequilibrium steady state, and (iii…
cond-mat.str-el2012★ 44 cited
Hybrid NRG-DMRG approach to real-time dynamics of quantum impurity systems
Fabian Guettge, Frithjof B. Anders, Ulrich Schollwoeck +2
A hybrid approach to nonequilibrium dynamics of quantum impurity systems is presented. The numerical renormalization group serves as a means to generate a suitable low-energy Hamil…