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O: Fachverband Oberflächenphysik

O 4: Transport: Quantum Dots, Quantum Wires, Point Contacts I (TT jointly with O)

O 4.2: Vortrag

Montag, 31. März 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.