Localizing fractional quasiparticles on graphene quantum hall antidots

Abstract

We report localization of fractional quantum Hall (QH) quasiparticles on graphene antidots. By studying coherent tunneling through the localized QH edge modes on the antidot, we measured the QH quasiparticle charges to be approximately $\pm e/3$ at fractional fillings of $\nu =\pm 1/3$. The Dirac spectrum in graphene allows large energy scales and robust quasiparticle localization against thermal excitation. The capability of localizing fractional quasiparticles on QH antidots brings promising opportunities for realizing anyon braiding and novel quantum electronics.

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Cited by in corpus (10)

• Fractional charge and fractional statistics in the quantum Hall effects
• Readout of parafermionic states by transport measurements
• Quantum Hall interferometry in triangular domains of marginally twisted bilayer graphene
• Dynamics of parafermionic states in transport measurements
• Tunable tunnel coupling in a double quantum antidot with cotunneling via localized state
• Localizing Individual Exciton on a Quantum Hall Antidot
• Coulomb oscillations of a quantum antidot formed by an airbridged pillar gate in the integer and fractional quantum Hall regime
• Topological states in double monolayer graphene
• Triple Antidot Molecules
• Extracting the scaling dimension of quantum Hall quasiparticles from current correlations