title: Chaotic scattering in the regime of weakly overlapping resonances.
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 3-16GHz . Below 10.1GHz 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 10.1GHz .
authors.affiliation: Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Dietz
authors.forename: T
authors.initials: T
authors.lastname: Friedrich
authors.forename: H L
authors.initials: HL
authors.lastname: Harney
authors.forename: M
authors.initials: M
authors.lastname: Miski-Oglu
authors.forename: A
authors.initials: A
authors.lastname: Richter
authors.forename: F
authors.initials: F
authors.lastname: Schäfer
authors.forename: H A
authors.initials: HA
authors.lastname: Weidenmüller