The Evolution of Quasiparticle Charge in the Fractional Quantum Hall Regime

Abstract

The charge of quasiparticles in a fractional quantum Hall (FQH) liquid, tunneling through a partly reflecting constriction with transmission t, was determined via shot noise measurements. In the nu=1/3 FQH state, a charge smoothly evolving from e*=e/3 for t=1 to e*=e for t<<1 was determined, agreeing with chiral Luttinger liquid theory. In the nu=2/5 FQH state the quasiparticle charge evolves smoothly from e*=e/5 at t=1 to a maximum charge less than e*=e/3 at t<<1. Thus it appears that quasiparticles with an approximate charge e/5 pass a barrier they see as almost opaque.

4 pages, Correct figure 3 and caption included

References in corpus (3)

• Observation of the e/3 Fractionally Charged Laughlin Quasiparticles
• Tunneling and Quantum Noise in 1-D Luttinger Liquids
• Exact non-equilibrium DC shot noise in Luttinger liquids and fractional quantum Hall devices

Cited by in corpus (40)

• Towards identification of a non-abelian state: observation of a quarter of electron charge at $\nu =5/2$ quantum Hall state
• Electron shot noise beyond the second moment
• Scattering of Bunched Fractionally Charged Quasiparticles
• Proliferation of neutral modes in fractional quantum Hall states
• Shot Noise through a Quantum Dot in the Kondo Regime
• Evidence for non-linear quasiparticle tunneling between fractional quantum Hall edges
• Is the charge determined via shot noise measurements unique?
• Shot noise in coupled dots and the "fractional charges"
• Shot Noise in Mesoscopic Systems: from Single Particles to Quantum Liquids
• Nonuniversal behavior of scattering between fractional quantum Hall edges
• Interactions suppress Quasiparticle Tunneling at Hall Bar Constrictions
• Robust Electron Pairing in the Integer Quantum Hall Effect Regime
• Charge of a quasiparticle in a superconductor
• Bunching of Fractionally-Charged Quasiparticles Tunneling through High Potential Barriers
• Invariance of Charge of Laughlin Quasiparticles
• Topological vacuum bubble by anyon braiding
• DC-transport in superconducting point contacts: a full counting statistics view
• Negative Excess Shot Noise by Anyon Braiding
• Why a noninteracting model works for shot noise in fractional charge experiments
• Shot-noise evidence of fractional quasiparticle creation in a local fractional quantum Hall state
• Edge Probes of Topological Order
• Interaction-induced interference in the integer quantum Hall effect
• Neutral modes edge state dynamics through quantum point contacts
• Anomalous Chiral Luttinger Liquid Behavior of Diluted Fractionally Charged Quasiparticles
• Quasiparticle Andreev scattering in the $\nu =1/3$ fractional quantum Hall regime
• Effect of interactions on the noise of chiral Luttinger liquid systems
• Observation of the scaling dimension of fractional quantum Hall anyons
• Anyon statistics through conductance measurements of time-domain interferometry
• Multiple Scattering of Fractionally-Charged Quasiparticles
• Transport properties of a two-dimensional electron liquid at high magnetic field
• Fluctuations in heat current and scaling dimension
• Transport of fractional Hall quasiparticles through an antidot
• Shot noise as a tool to probe an electron energy distribution
• Measuring topological entanglement entropy using Maxwell relations
• Electron-pairing in the quantum Hall regime due to neutralon exchange
• Signature of anyonic statistics in the integer quantum Hall regime
• Unexpected tunneling current from downstream neutral modes
• Tunneling current noise in the fractional quantum Hall effect: when the effective charge is not what it appears to be
• Tunneling of quasiholes in the fractional quantum Hall regime
• Extracting the scaling dimension of quantum Hall quasiparticles from current correlations