Transport properties in bilayer Quantum Hall systems in the presence of a topological defect

Details Transport properties in bilayer Quantum Hall systems in the presence of a topological defect Transport properties in bilayer Quantum Hall systems in the presence of a topological defect

2006-06-27

arxiv.org/abs/hep-th/0606252v1

AIPConf.Proc.846:275-284,2006

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, 4 figures; talk given by A. Naddeo at "X Training Course in the Physics of Correlated Electron Systems and High-Tc S

Scientific paper

10.1063/1.2222276

Following a suggestion given in Phys. Lett. B 571(2003) 621, we show how a bilayer Quantum Hall system at fillings nu =1/p+1 can exhibit a point-like topological defect in its edge state structure. Indeed our CFT theory for such a system, the Twisted Model (TM), gives rise in a natural way to such a feature in the twisted sector. Our results are in agreement with recent experimental findings (Phys. Rev. B 72 (2005) 041305) which evidence the presence of a topological defect in the transport properties of the bilayer system.

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