Edge channel mixing induced by potential steps in an integer quantum Hall system
arXiv:1008.1913 · doi:10.1103/PhysRevB.83.075315
Abstract
We investigate the coherent mixing of co-propagating edge channels in a quantum Hall bar produced by step potentials. In the case of two edge channels it is found that, although a single step induces only a few percent mixing, a series of steps could yield 50% mixing. In addition, a strong mixing is found when the potential height of a single step allows a different number of edge channels on the two sides of the step. Charge density probability has been also calculated even for the case where the step is smoothened.
final version: 7 pages, 6 figures
References in corpus (18)
- Quantum Transport in Semiconductor Nanostructures
- An Electronic Mach-Zehnder Interferometer
- Direct measurement of the coherence length of edge states in the Integer Quantum Hall Regime
- Dephasing in the electronic Mach-Zehnder interferometer at filling factor 2
- Finite bias visibility of the electronic Mach-Zehnder interferometer
- Decoherence and single electron charging in an electronic Mach-Zehnder interferometer
- Controlled Dephasing of Electrons by Non-Gaussian Shot Noise
- Plasmon scattering approach to energy exchange and high frequency noise in nu=2 quantum Hall edge channels
- Transverse Electron Focusing in Systems with Spin-Orbit Coupling
- Interaction induced edge channel equilibration
- The structure of a single sharp quantum Hall edge probed by momentum-resolved tunneling
- Multiparticle interference in electronic Mach-Zehnder interferometers
- Theory of Edge States in Systems with Rashba Spin-Orbit Coupling
- Selective control of edge-channel trajectories by scanning gate microscopy
- Multi-channel architecture for electronic quantum-Hall interferometry
- Mode-Matching Technique for Transmission Calculations in Electron Waveguides at High Magnetic Fields
- Experimental realization of a Fabry-Perot-type interferometer by co-propagating edge states in the quantum Hall regime
- Charge redistribution between cyclotron-resolved edge states at high imbalance
Cited by in corpus (8)
- Controlled coupling of spin-resolved quantum Hall edge states
- Spatially-resolved analysis of edge-channel equilibration in quantum Hall circuits
- Coulomb and exchange interaction effects on the exact two-electron dynamics in the Hong-Ou-Mandel interferometer based on Hall edge states
- Proposal for a Datta-Das transistor in the quantum Hall regime
- Time-dependent simulation and analytical modelling of electronic Mach-Zehnder interferometry with edge-states wave packets
- Dynamics and Hall-edge-state mixing of localized electrons in a two-channel Mach-Zehnder interferometer
- Density inhomogeneities and Rashba spin-orbit coupling interplay in oxide interfaces
- Tunable dispersion of the edge states in the integer quantum Hall effect