BeschreibungWe solve the single-impurity Anderson model in a magnetic field and
out of equilibrium with an auxiliary master equation approach [1,2].
Employing Matrix Product States techniques to solve the many-body
Lindblad equation allows us to generate highly accurate results, espe-
cially for the spectral functions. In equilibrium we find a remarkable
agreement with spectral functions obtained with NRG, cf. .
The application of a bias voltage V and a magnetic field B both indi-
vidually result in a splitting of the Kondo resonance around the Kondo
temperature. With our method we can resolve a four-peak structure
in the spectral function for nonzero B and V, due to both effects.
This four-peak structure manifests itself in the differential conduc-
tance, which is very well accessible by experiments.
We investigate the stationary properties of the system as well as its
dynamics after a quantum quench. We finally compare our results to
recent experiments  and draw conclusions about the underlying spec-
tral functions. We find that our results nicely agree with experimental
data also outside the Kondo regime.
 E. Arrigoni et al., PRL 110, 086403 (2013)
 A. Dorda et al., PRB 92, 125145 (2015)
 A. V. Kretinin et al., PRB 84, 245316 (2011)
|Zeitraum||21 März 2017|
|Ereignistitel||Verhandlungen der Deutschen Physikalischen Gesellschaft 2017|