Observation of Neutral Modes In The Fractional Quantum Hall Effect Regime

Aveek Bid, Nissim Ofek, Hiroyuki Inoue, Moty Heiblum, C. L. Kane, Vladimir Y. Umansky, Diana Mahalu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report on the first experimental observation of neutral modes in particle-hole conjugate fractional quantum Hall states using shot noise measurements. The presence of the neutral modes, in addition to producing excess noise in a quantum point contact (QPC), was seen to affect strongly the charge of the tunneling quasiparticles of the charge mode in the QPC and to increase their apparent temperature. The observation of an upstream neutral mode in the 5/2 state may constitute an added indication of its non-abelian nature.
Original languageEnglish
Title of host publicationAIP Conference Proceedings
Number of pages2
Volume1399
DOIs
StatePublished - 2011
Event30th International Conference on the Physics of Semiconductors (ICPS-30) - Seoul, SOUTH KOREA, Seoul, Korea, Republic of
Duration: 25 Jul 201030 Jul 2010

Publication series

NamePhysics Of Semiconductors: 30Th International Conference On The Physics Of Semiconductors
ISSN (Print)0094-243X

Conference

Conference30th International Conference on the Physics of Semiconductors (ICPS-30)
Country/TerritoryKorea, Republic of
CitySeoul
Period25/07/1030/07/10

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