3 papers
cond-mat.str-el2018
RG transport theory for open quantum systems: Charge fluctuations in multilevel quantum dots in and out of equilibrium
Carsten J. Lindner, Fabian B. Kugler, Volker Meden +1
We present the real-time renormalization group (RTRG) method as a method to describe the stationary state current through generic multi-level quantum dots with a complex setup in n…
cond-mat.mes-hall2018
Flavor fluctuations in 3-level quantum dots: Generic SU(3)-Kondo fixed point in equilibrium and non-Kondo fixed points in nonequilibrium
Carsten J. Lindner, Fabian B. Kugler, Herbert Schoeller +1
We study a -level quantum dot in the singly occupied cotunneling regime coupled via a generic tunneling matrix to several multi-channel leads in equilibrium or nonequilibrium. W…
cond-mat.stat-mech2018
Dissipative quantum mechanics beyond Bloch-Redfield: A consistent weak-coupling expansion of the ohmic spin boson model at arbitrary bias
Carsten J. Lindner, Herbert Schoeller
We study the time dynamics of the ohmic spin boson model at arbitrary bias and small coupling to the bosonic bath. Using perturbation theory and the real-time renormalizati…