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25 papers · 2 filters
Magnetic field effects on the finite-frequency noise and ac conductance of a Kondo quantum dot out of equilibrium
S. Y. Mueller, M. Pletyukhov, D. Schuricht +1
We present analytic results for the finite-frequency current noise and the nonequilibrium ac conductance for a Kondo quantum dot in presence of a magnetic field. Using the real-tim…
Oscillatory dynamics and non-markovian memory in dissipative quantum systems
D. M. Kennes, O. Kashuba, M. Pletyukhov +2
The nonequilibrium dynamics of a small quantum system coupled to a dissipative environment is studied. We show that (1) the oscillatory dynamics close to a coherent-to-incoherent t…
Topological order in PEPS: Transfer operator and boundary Hamiltonians
Norbert Schuch, Didier Poilblanc, J. Ignacio Cirac +1
We study the structure of topological phases and their boundaries in the Projected Entangled Pair States (PEPS) formalism. We show how topological order in a system can be identifi…
The interacting resonant level model in nonequilibrium: finite temperature effects
D. M. Kennes, V. Meden
We study the steady-state properties as well as the relaxation dynamics of the nonequilibrium interacting resonant level model at finite temperatures. It constitutes the prototype…
An alternative functional renormalization group approach to the single impurity Anderson model
Michael Kinza, Jutta Ortloff, Johannes Bauer +1
We present an alternative functional renormalization group (fRG) approach to the single-impurity Anderson model at finite temperatures. Starting with the exact self-energy and inte…
Self-energy feedback and frequency-dependent interactions in the functional renormalization group flow for the two-dimensional Hubbard model
Stefan Uebelacker, Carsten Honerkamp
We study the impact of including the self-energy feedback and frequency-dependent interactions on functional renormalization group grows for the two-dimensional Hubbard model on th…