Europhys. Lett, 47 (1), pp. 83-89 (1999)
Theory of suppressed shot noise at
K.-I. Imura 1 and K. Nomura 2
1 Department of Applied Physics, University of Tokyo
Hongo 7-3-1, Tokyo 113-8656, Japan
2 Institute of Physics, University of Tokyo
Komaba 3-8-1, Tokyo 153-8902, Japan
(received 1 March 1999; accepted in final form 29 April 1999)
PACS. 72.10 - Theory of electronic transport;
PACS. 73.20Dx - Electron states in low-dimensional structures (superlattices, quantum well structures and multilayers).
PACS. 73.40Hm - Quantum Hall effect (integer and fractional).
We study the edge states of fractional quantum Hall liquid at bulk filling factor with p being an even integer and .We describe the transition from a conductance plateau to another plateau in terms of chiral Tomonaga-Luttinger liquid theory. It is found that the fractional charge q which appears in the classical shot noise formula is on the conductance plateau at whereas on the plateau at it is given by .For p=2 and an alternative hierarchy construction is also discussed to explain the suppressed shot noise experiment at bulk filling factor .
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