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29 March 2024
 
  » arxiv » nlin.CD/0506025

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Aspects of the Scattering and Impedance Properties of Chaotic Microwave Cavities
Sameer Hemmady ; Xing Zheng ; Thomas M. Antonsen Jr. ; Edward Ott ; Steven M. Anlage ;
Date 10 Jun 2005
Subject Chaotic Dynamics; Mesoscopic Systems and Quantum Hall Effect; Disordered Systems and Neural Networks | nlin.CD cond-mat.dis-nn cond-mat.mes-hall
AbstractWe consider the statistics of the impedance of a chaotic microwave cavity coupled to a single port. We remove the non-universal effects of the coupling from the experimental data using the radiation impedance obtained directly from the experiments. We thus obtain the normalized impedance whose Probability Density Function (PDF) is predicted to be universal in that it depends only on the loss (quality factor) of the cavity. We find that impedance fluctuations decrease with increasing loss. The results apply to scattering measurements on any wave chaotic system.
Source arXiv, nlin.CD/0506025
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