A tunable Fabry-Pérot quantum Hall interferometer in graphene
arXiv:2008.11222 · doi:10.1038/s41565-021-00847-x
Abstract
Electron interferometry with quantum Hall edge channels holds promise for probing and harnessing exotic exchange statistics of non-Abelian anyons. In semiconductor heterostructures, however, quantum Hall interferometry has proven challenging and often obscured by charging effects. Here we show that high-mobility monolayer graphene equipped with a series of gate-tunable quantum point contacts that act as electron beam-splitters provides a model system to perform Fabry-Pérot quantum Hall interferometry. We observe high-visibility Aharonov-Bohm interference free of charging effects and widely tunable through electrostatic gating or magnetic field, in remarkable agreement with theory. A coherence length of at a temperature of K allows us to further achieve coherently-coupled double Fabry-Pérot interferometry. Our results open a new avenue for quantum Hall interferometry and the exploitation of topological excitations for quantum computation.
Revised main text
References in corpus (10)
- Multicomponent fractional quantum Hall effect in graphene
- Fractional statistics in anyon collisions
- Detecting Non-Abelian Statistics in the nu=5/2 Fractional Quantum Hall State
- Aharonov-Bohm interference of fractional quantum Hall edge modes
- Primary-Filling e/3 Quasiparticle Interferometer
- Edge-State Velocity and Coherence in a Quantum Hall Fabry-Perot Interferometer
- Detecting non-Abelian Statistics with Electronic Mach-Zehnder Interferometer
- Aharonov Bohm Effect in Graphene Fabry Pérot Quantum Hall Interferometers
- Gate-Defined Graphene Quantum Point Contact in the Quantum Hall Regime
- Universality of Bias- and Temperature-induced Dephasing in Ballistic Electronic Interferometers
Cited by in corpus (45)
- Aharonov Bohm Effect in Graphene Fabry Pérot Quantum Hall Interferometers
- Phase-Coherent Charge Transport through a Porphyrin Nanoribbon
- Impact of bulk-edge coupling on observation of anyonic braiding statistics in quantum Hall interferometers
- Anyons in Quantum Hall Interferometry
- Evidence for chiral supercurrent in quantum Hall Josephson junctions
- Anyon braiding and telegraph noise in a graphene interferometer
- Universal chiral Luttinger liquid behavior in a graphene fractional quantum Hall point contact
- Nanoscale electrostatic control in ultra clean van der Waals heterostructures by local anodic oxidation of graphite gates
- Emission and Coherent Control of Levitons in Graphene
- Strongly coupled edge states in a graphene quantum Hall interferometer
- Graphene-based quantum Hall interferometer with self-aligned side gates
- Mechanically-reconfigurable van der Waals devices via low-friction gold sliding
- Absence of edge reconstruction for quantum Hall edge channels in graphene devices
- Aharonov-Bohm oscillations in bilayer graphene edge state Fabry-Pérot interferometers
- Aharonov-Bohm interference and the evolution of phase jumps in fractional quantum Hall Fabry-Perot interferometers based on bi-layer graphene
- Time-resolved sensing of electromagnetic fields with single-electron interferometry
- Optical flux pump in the quantum Hall regime
- Electrodynamic Aharonov-Bohm effect
- Evidence for correlated electron pairs and triplets in quantum Hall interferometers
- Dissipation and dephasing in quantum Hall interferometers
- Localization and conductance in fractional quantum Hall edges
- Anomalous Aharonov-Bohm Interference in the Presence of Edge Reconstruction
- Manipulating electron waves in graphene using carbon nanotube gating
- Termination of Graphene Edges Created by Hydrogen and Deuterium Plasmas
- Observation of Electronic Modes in Open Cavity Resonator
- Aharonov-Bohm Interference in Even-Denominator Fractional Quantum Hall States
- Readout of quantum screening effects using a time-dependent probe
- Quantum Hall interferometry at finite bias with multiple edge channels
- Time-dependent transport in Graphene Mach-Zender Interferometers
- Optimizing energy conversion with nonthermal resources in steady-state quantum devices
- Electron Phase Detection in Single Molecules by Interferometry
- Conductance oscillation in surface junctions of Weyl semimetals
- Single electron interference and capacitive edge mode coupling generates flux periodicity in Fabry-Perot interferometers
- Four-band effective square lattice model for Bernal-stacked bilayer graphene
- Edge channels in a graphene Fabry-Perot interferometer
- Revisiting Coulomb diamond signatures in quantum Hall interferometers
- Fabry-Perot and Aharonov-Bohm interference in ideal graphene nanoribbons
- Spontaneous localization at a potential saddle point from edge state reconstruction in a quantum Hall point contact
- Topological schemes in spacetime for the electrodynamic Aharonov-Bohm effect
- Quasi--periodic supercurrent at quantum Hall transitions
- Asymmetric-gate Mach--Zehnder interferometry in graphene: Multi-path conductance oscillations and visibility characteristics
- Localizing Individual Exciton on a Quantum Hall Antidot
- Topology of the Aharonov-Bohm effect in different reference frames
- Chern junctions in Moiré-Patterned Graphene/PbI2
- Residual quantum coherent electron transport in doped graphene leads