Signatures of fractional Hall quasiparticle in moments of current through an antidot

Autor: Alessandro Braggio, Matteo Merlo, Nicodemo Magnoli, Maura Sassetti
Jazyk: angličtina
Rok vydání: 2006
Předmět:
Zdroj: Physical review. B, Condensed matter and materials physics 74 (2006): 041304. doi:10.1103/PhysRevB.74.041304
info:cnr-pdr/source/autori:Braggio, A; Merlo, M; Magnoli, N; Sassetti, M/titolo:Signatures of fractional Hall quasiparticles in moments of current through an antidot/doi:10.1103%2FPhysRevB.74.041304/rivista:Physical review. B, Condensed matter and materials physics/anno:2006/pagina_da:041304/pagina_a:/intervallo_pagine:041304/volume:74
DOI: 10.1103/PhysRevB.74.041304
Popis: The statistics of tunneling current in a fractional quantum Hall sample with an antidot is studied in the chiral Luttinger liquid picture of edge states. A comparison between Fano factor and skewness is proposed in order to clearly distinguish the charge of the carriers in both the thermal and the shot limit. In addition, we address effects on current moments of non-universal exponents in single-quasiparticle propagators. Positive correlations, result of propagators behaviour, are obtained in the shot noise limit of the Fano factor, and possible experimental consequences are outlined.
Databáze: OpenAIRE