Dresden 2014 – scientific programme
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O: Fachverband Oberflächenphysik
O 4: Transport: Quantum Dots, Quantum Wires, Point Contacts I (TT jointly with O)
O 4.2: Talk
Monday, March 31, 2014, 09:45–10:00, BEY 81
Towards steady state currents on finite systems — •Tim Collet1 and Peter Schmitteckert2 — 1Theoretical Condensed Matter physics, KIT — 2Institute for Nanotechnology, KIT
The determination of transport properties of strongly correlated quantum systems by quenches in the charge imbalance is a well established technique. However, the achievable time scales are limited by the system size inducing a finite transit time. Here we present a technique in the spirit of absorbing boundary conditions. This allows to obtain steady states on a finite system and to overcome said limitation from finite transit times. We discuss the application of this concept in the context of transport through quantum impurities.