Plasmon modes of coupled quantum Hall edge channels in the presence of disorder-induced tunneling

Abstract

Coupled quantum Hall edge channels show intriguing non-trivial modes, for example, charge and neutral modes at Landau level filling factors 2 and 2/3. We propose an appropriate and effective model with Coulomb interaction and disorder-induced tunneling characterized by coupling capacitances and tunneling conductances, respectively. This model explains how the transport eigenmodes, within the interaction- and disorder-dominated regimes, change with the coupling capacitance, tunneling conductance, and measurement frequency. We propose frequency- and time-domain transport experiments, from which eigenmodes can be determined using this model.

7 pages, 3 figures

References in corpus (5)

• Non-Abelian Anyons and Topological Quantum Computation
• The relaxation time of a chiral quantum R-L circuit
• Non-Equilibrated Counter Propagating Edge Modes in the Fractional Quantum Hall Regime
• Charge equilibration in integer and fractional quantum Hall edge channels in a generalized Hall-bar device
• Quantized charge fractionalization at quantum Hall Y junctions in the disorder-dominated regime

Cited by in corpus (4)

• Coherent-Incoherent Crossover of Charge and Neutral Mode Transport as Evidence for the Disorder-Dominated Fractional Edge Phase
• Time-resolved investigation of plasmon mode along interface channels in integer and fractional quantum Hall regimes
• Non-uniform heat redistribution among multiple channels in the integer quantum Hall regime
• Ballistic-to-diffusive transition in engineered counter-propagating quantum Hall channels