Non-linear Quantum Transport in Interacting Nanostructures

Benedikt Schoenauer () and Peter Schmitteckert ()
Additional contact information
Benedikt Schoenauer: Utrecht University, Center for Extreme Matter and Emergent Phenomena, Institute for Theoretical Physics
Peter Schmitteckert: Universität Würzburg, Lehrstuhl für Theoretische Physik I, Physikalisches Institut, Am Hubland

A chapter in High Performance Computing in Science and Engineering ´16, 2016, pp 203-225 from Springer

Abstract: Abstract We study numerically whether the transient dynamics of local currents inside interacting regions, coupled to non-interacting leads, can be distinctly different from the transient dynamics of currents which are transmitted through these interacting regions. Here, we present a simple model system incorporating an asymmetric ring structure as an interacting impurity region into a non-interacting tight-binding chain. For this model system, we observe local currents, restricted to the ring structure, that can easily outgrow the net current through the system. The transient oscillations of these currents may also decay on time scales orders of magnitude larger than the decay time of transient features in the transmitted currents, for which a decay time is known (Wingreen et al., Phys Rev B 48(11):8487–8490, 1993) to always exist and to be proportional to the inverse resonance width.

Date: 2016
References: Add references at CitEc
Citations:

There are no downloads for this item, see the EconPapers FAQ for hints about obtaining it.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-319-47066-5_15

Ordering information: This item can be ordered from
http://www.springer.com/9783319470665

DOI: 10.1007/978-3-319-47066-5_15

Access Statistics for this chapter

More chapters in Springer Books from Springer
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().