Signatures of fractional statistics in noise experiments in quantum hall fluids

Eun Ah Kim, Michael Lawler, Smitha Vishveshwara, Eduardo Fradkin

Research output: Contribution to journalArticlepeer-review

78 Scopus citations


The elementary excitations of fractional quantum Hall (FQH) fluids are vortices with fractional statistics. Yet, this fundamental prediction has remained an open experimental challenge. Here we show that the cross-current noise in a three-terminal tunneling experiment of a two dimensional electron gas in the FQH regime can be used to detect directly the statistical angle of the excitations of these topological quantum fluids. We show that the noise also reveals signatures of exclusion statistics and of fractional charge. The vortices of Laughlin states should exhibit a bunching effect, while for higher states in the Jain sequences they should exhibit an "antibunching" effect.

Original languageEnglish
Article number176402
JournalPhysical Review Letters
Issue number17
StatePublished - 21 Oct 2005


Dive into the research topics of 'Signatures of fractional statistics in noise experiments in quantum hall fluids'. Together they form a unique fingerprint.

Cite this