Signatures of fractional statistics in noise experiments in quantum hall fluids

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

Research output: Contribution to journalArticle

Abstract

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 (US)
Article number176402
JournalPhysical review letters
Volume95
Issue number17
DOIs
StatePublished - Oct 21 2005

Fingerprint

signatures
statistics
vortices
fluids
bunching
elementary excitations
exclusion
electron gas
predictions
excitation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Signatures of fractional statistics in noise experiments in quantum hall fluids. / Kim, Eun Ah; Lawler, Michael; Vishveshwara, Smitha; Fradkin, Eduardo.

In: Physical review letters, Vol. 95, No. 17, 176402, 21.10.2005.

Research output: Contribution to journalArticle

@article{54daa400276a46d494158f65423febf5,
title = "Signatures of fractional statistics in noise experiments in quantum hall fluids",
abstract = "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.",
author = "Kim, {Eun Ah} and Michael Lawler and Smitha Vishveshwara and Eduardo Fradkin",
year = "2005",
month = "10",
day = "21",
doi = "10.1103/PhysRevLett.95.176402",
language = "English (US)",
volume = "95",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "17",

}

TY - JOUR

T1 - Signatures of fractional statistics in noise experiments in quantum hall fluids

AU - Kim, Eun Ah

AU - Lawler, Michael

AU - Vishveshwara, Smitha

AU - Fradkin, Eduardo

PY - 2005/10/21

Y1 - 2005/10/21

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=28844457717&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=28844457717&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.95.176402

DO - 10.1103/PhysRevLett.95.176402

M3 - Article

AN - SCOPUS:28844457717

VL - 95

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 17

M1 - 176402

ER -