Invariance of Charge of Laughlin Quasiparticles

Abstract

A Quantum Antidot electrometer has been used in the first direct observation of the fractionally quantized electric charge. In this paper we report experiments performed on the integer i = 1, 2 and fractional f = 1/3 quantum Hall plateaus extending over a filling factor range of at least 27%. We find the charge of the Laughlin quasiparticles to be invariantly e/3, with standard deviation of 1.2% and absolute accuracy of 4%, independent of filling, tunneling current, and temperature.

4 pages, 5 figs

References in corpus (3)

• The Evolution of Quasiparticle Charge in the Fractional Quantum Hall Regime
• Energetics of Quantum Antidot States in Quantum Hall Regime
• The Aharonov-Bohm Effect in the Fractional Quantum Hall Regime

Cited by in corpus (29)

• Realization of a Laughlin quasiparticle interferometer: Observation of fractional statistics
• Observation of Aharonov-Bohm Superperiod in a Laughlin Quasiparticle Interferometer
• Primary-Filling e/3 Quasiparticle Interferometer
• Fractional charge and fractional statistics in the quantum Hall effects
• Aharonov-Bohm electron interferometer in the integer quantum Hall regime
• Quantum transport in electron Fabry-Perot interferometers
• Anyons in Quantum Hall Interferometry
• Conductance of one-dimensional quantum wires
• Coulomb blockade of anyons
• Single quasiparticle and electron nano-emitter in the fractional quantum Hall regime
• Coulomb Oscillations in Antidots in the Integer and Fractional Quantum Hall Regimes
• Electron interactions in an antidot in the integer quantum Hall regime
• Electron tunneling spectroscopy of a quantum antidot in the quantum Hall regime
• Superperiods and quantum statistics of Laughlin quasiparticles
• Possible observation of phase coexistence of the $\nu =1/3$ fractional quantum Hall liquid and a solid
• Signatures of fractional Hall quasiparticles in moments of current through an antidot
• Flux period scaling in the Laughlin quasiparticle interferometer
• Strong-coupling branching of FQHL edges
• Antidot tunneling between Quantum Hall liquids with different filling factors
• Microscopic study of the 2/5 fractional quantum Hall edge
• Effective theory of fractional topological insulators in two spatial dimensions
• Transport of fractional Hall quasiparticles through an antidot
• Superperiods in interference of e/3 Laughlin quasiparticles encircling filling 2/5 fractional quantum Hall island
• Orbital Kondo effect in fractional quantum Hall systems
• Correlated transport of FQHE quasiparticles in a double-antidot system
• Experimental realization of Laughlin quasiparticle interferometers
• Energy spectrum of a 2D Dirac oscillator in the presence of a constant magnetic field and an antidot potential
• Quantum computation with hybrid parafermion-spin qubits
• Coulomb oscillations of a quantum antidot formed by an airbridged pillar gate in the integer and fractional quantum Hall regime