Detection of interaction-induced nonlocal effects using perfectly transmitting nanostructures

Abstract

We consider one-dimensional transport through an interacting region in series with a point-like one-body scatterer. When the conductance of the interacting region is perfect, independently of the interaction strength, a nonlocal interaction effect yields a total conductance of the composed system that depends on the interaction strength and is lower than the transmission of the one-body scatterer. This qualitative nonlocal effect allows to probe the dressing cloud of an interacting system by ideal noninteracting leads. The conductance correction increases with the strength of the interaction and the reflection of the one-body scatterer (attaining relative changes >50%), and decreases with the distance between the interacting region and the one-body scatterer. Scaling laws are obtained and possible experimental realizations are suggested.

6 pages, 6 figures

References in corpus (8)

• Imaging Electron Wave Functions Inside Open Quantum Rings
• Effects of short-range interactions on transport through quantum point contacts: A numerical approach
• Oscillatory non-linear conductance of an interacting quantum wire with an impurity
• Residual conductance of correlated one-dimensional nanosystems: A numerical approach
• Scanning Gate Microscopy of a Nanostructure where Electrons Interact
• Length-dependent oscillations of the conductance through atomic chains: The importance of electronic correlations
• Interacting electron systems between Fermi leads: effective one-body transmissions and correlation clouds
• Effect of measurement probes upon the conductance of an interacting nanosystem: Detection of an attached ring by non local many body effects