Finite frequency noise for Laughlin state investigated by a resonant circuit

M. Carrega, D. Ferraro, A. Braggio, M. Sassetti

Published 2014-12-16Version 1

We study the finite frequency (F.F.) noise properties of edge states in the Laughlin state. We investigate the model of a resonant detector coupled to a quantum point contact in the weak-backscattering limit. In particular we discuss the impact of possible renormalization of the Luttinger exponent, due to environmental effects, on the measured quantities and we propose a simple way to extract such non-universal parameters from noise measurements.