Universal transport properties of open microwave cavities with and without time-reversal symmetry

H. Schanze, H.-J. Stöckmann, M. Martínez-Mares, and C. H. Lewenkopf
Phys. Rev. E 71, 016223 – Published 28 January 2005

Abstract

We measure the transmission through asymmetric and reflection-symmetric chaotic microwave cavities in dependence on the number of attached waveguides. Ferrite cylinders are placed inside the cavities to break time-reversal symmetry. The phase-breaking properties of the ferrite and its range of applicability are discussed in detail. We use the random matrix theory accounting for absorption effects to calculate the universal distribution of transmission coefficients T and their energy derivatives dTdε. Using the absorption strength as a fitting parameter, we find good agreement between universal transmission fluctuations predicted by the theory and the experimental data.

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  • Received 26 July 2004

DOI:https://doi.org/10.1103/PhysRevE.71.016223

©2005 American Physical Society

Authors & Affiliations

H. Schanze and H.-J. Stöckmann

  • Fachbereich Physik der Philipps-Universität Marburg, D-35032 Marburg, Germany

M. Martínez-Mares

  • Departamento de Física, UAM-Iztapalapa, Avenida San Rafael Atlixco 186, Col. Vicentina, 09340 México, Distrito Federal, Mexico and Instituto de Física, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier 524, 20550-900 Rio de Janeiro, Brazil

C. H. Lewenkopf

  • Instituto de Física, Universidade do Estado do Rio de Janeiro, R. São Francisco Xavier 524, 20550-900 Rio de Janeiro, Brazil

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Vol. 71, Iss. 1 — January 2005

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