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Abstract: We use tetrahedral microwave networks consisting of coaxial cables andattenuators connected by T-joints to make an experimental study of Wigner-sreaction K matrix for irregular graphs in the presence of absorption. Frommeasurements of the scattering matrix S for each realization of the microwavenetwork we obtain distributions of the imaginary and real parts of K. Ourexperimental results are in good agreement with theoretical predictions.



Author: Oleh Hul, Oleg Tymoshchuk, Szymon Bauch, Peter M. Koch, Leszek Sirko

Source: https://arxiv.org/







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