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Chaotic Scattering in the Regime of Weakly Overlapping Resonances

Dietz, B. and Friedrich, T. and Harney, H. L. and Miski-Oglu, M. and Richter, A. and Schäfer, F. and Weidenmüller, H. A. (2008):
Chaotic Scattering in the Regime of Weakly Overlapping Resonances.
In: Phys. Rev. E, pp. 055204(R), 78, [Online-Edition: http://link.aps.org/abstract/PRE/v78/e055204],
[Article]

Abstract

We measure the transmission and reflection amplitudes of microwaves in a resonator coupled to two antennas at room temperature in the regime of weakly overlapping resonances and in a frequency range of 3--16 GHz. Below 10.1 GHz the resonator simulates a chaotic quantum system. The distribution of the elements of the scattering matrix S is not Gaussian. The Fourier coefficients of S are used for a best fit of the autocorrelation function of S to a theoretical expression based on random-matrix theory. We find very good agreement below but not above 10.1 GHz.

Item Type: Article
Erschienen: 2008
Creators: Dietz, B. and Friedrich, T. and Harney, H. L. and Miski-Oglu, M. and Richter, A. and Schäfer, F. and Weidenmüller, H. A.
Title: Chaotic Scattering in the Regime of Weakly Overlapping Resonances
Language: English
Abstract:

We measure the transmission and reflection amplitudes of microwaves in a resonator coupled to two antennas at room temperature in the regime of weakly overlapping resonances and in a frequency range of 3--16 GHz. Below 10.1 GHz the resonator simulates a chaotic quantum system. The distribution of the elements of the scattering matrix S is not Gaussian. The Fourier coefficients of S are used for a best fit of the autocorrelation function of S to a theoretical expression based on random-matrix theory. We find very good agreement below but not above 10.1 GHz.

Journal or Publication Title: Phys. Rev. E
Volume: 78
Divisions: 05 Department of Physics
05 Department of Physics > Institute for condensed matter physics
Date Deposited: 20 Jan 2009 12:55
Official URL: http://link.aps.org/abstract/PRE/v78/e055204
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