Signatures of folded branches in the scanning gate microscopy of ballistic electronic cavities
arXiv:2010.12409 · doi:10.21468/SciPostPhys.10.3.069
Abstract
We demonstrate the emergence of classical features in electronic quantum transport for the scanning gate microscopy response in a cavity defined by a quantum point contact and a micron-sized circular reflector. The branches in electronic flow characteristic of a quantum point contact opening on a two-dimensional electron gas with weak disorder are folded by the reflector, yielding a complex spatial pattern. Considering the deflection of classical trajectories by the scanning gate tip allows to establish simple relationships of the scanning pattern, which are in agreement with recent experimental findings.
arXiv comment20 pages, 13 figures, revised version, submission to SciPost
References in corpus (21)
- Kwant: a software package for quantum transport
- Coherent Branched Flow in a Two-Dimensional Electron Gas
- Imaging Fractal Conductance Fluctuations and Scarred Wave Functions in a Quantum Billiard
- On the imaging of electron transport in semiconductor quantum structures by scanning-gate microscopy: successes and limitations
- What is measured in the scanning gate microscopy of a quantum point contact?
- Theory of scanning gate microscopy
- Local densities, distribution functions, and wave function correlations for spatially resolved shot noise at nanocontacts
- Transport Spectroscopy of a Spin-Coherent Dot-Cavity System
- Interference features in scanning gate conductance maps of quantum point contacts with disorder
- Scanning gate experiments: from strongly to weakly invasive probes
- Partial local density of states from scanning gate microscopy
- Diffractive orbits in an open microwave billiard
- Scanning gate imaging in confined geometries
- Scanning-gate-induced effects and spatial mapping of a cavity
- Long-range spin-coherence in a strongly-coupled all electronic dot-cavity system
- Energy Stability of Branching in the Scanning Gate Response of Two-Dimensional Electron Gases with Smooth Disorder
- Influence of diffraction on the spectrum and wavefunctions of an open system
- Stable Branched Electron Flow
- Classical origin of conductance oscillations in an integrable cavity
- 2D Rutherford-Like Scattering in Ballistic Nanodevices
- Accurate characterization of tip-induced potential using electron interferometry
Cited by in corpus (3)
- Deep neural networks for inverse problems in mesoscopic physics: Characterization of the disorder configuration from quantum transport properties
- Gate-tunable regular and chaotic electron dynamics in ballistic bilayer graphene cavities
- Imaging signatures of the local density of states in an electronic cavity