2007/01/31 by Matteo Merlo, M. Merlo, Alessandro Braggio +2
Physics and Astronomy · #Charge (physics) #Condensed matter physics #Coulomb #Current (fluid) #Electron #Exponent #Fano factor #Fractional quantum Hall effect #Luttinger liquid #Physics #Physics of Superconductivity and Magnetism #Quantum #Quantum Hall effect #Quantum and electron transport phenomena #Quantum electrodynamics #Quantum mechanics #Quantum spin Hall effect #Quantum tunnelling #Quasiparticle #Shot noise #Superconductivity #Topological Materials and Phenomena #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.75.195332
published as Phys. Rev. B 75, 195332 (2007) · accepted for publication in Phys. Rev. B, references added
arxiv created 2007/03/20 · openalex publication_date 2007/05/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Current statistics of an antidot in the fractional quantum Hall regime is studied for Laughlin's series. The chiral Luttinger liquid picture of edge states with a renormalized interaction exponent g is adopted. Several peculiar features are found in the sequential tunneling regime. On one side, current displays negative differential conductance and double-peak structures when g<1. On the other side, universal sub-Poissonian transport regimes are identified through an analysis of higher current moments. A comparison between the Fano factor and skewness is proposed in order to clearly distinguish the charge of the carriers, regardless of possible nonuniversal interaction renormalizations. Super-Poissonian statistics is obtained in the shot limit for g<1, and plasmonic effects due to the finite-size antidot are tracked.