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Photonic excess noise and wave localization

2000/01/12 by C. W. J. Beenakker, M. Patra, Piet W. Brouwer +1
Computer Science · Physics and Astronomy · #Mechanical and Optical Resonators #Quantum Information and Cryptography #Quantum and electron transport phenomena #cond-mat.dis-nn #quant-ph

paper · pdf · doi:10.1103/physreva.61.051801

published as Phys.Rev.A 61, 051801 (2000) · 3 pages including 3 figures

arxiv created 2000/01/12 · openalex publication_date 2000/03/30 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

This is a theory for the effect of localization on the super-Poissonian noise of radiation propagating through an absorbing disordered waveguide. Localization suppresses both the mean photon current \ifmmode I\else \=I\fi and the noise power P, but the Fano factor P/\ifmmode I\else \=I\fi is found to remain unaffected. For strong absorption the Fano factor has the universal value 1+(3)/(2)f (with f the Bose-Einstein function), regardless of whether the waveguide is long or short compared to the localization length.

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