Numerical and Experimental Studies of the Elastic Enhancement Factor for 2D Open Systems

M. Ławniczak, M. Białous, V. Yunko, S. Bauch, L. Sirko
2015 Acta Physica Polonica. A  
We present the results of numerical and experimental studies of the elastic enhancement factor W for microwave rough and rectangular cavities simulating two-dimensional chaotic and partially chaotic quantum billiards in the presence of moderate absorption. We show that for the frequency range ν = 15.0−18.5 GHz, in which the coupling between antennas and the system is strong enough, the values of W for the microwave rough cavity lie below the predictions of random matrix theory and on average
more » ... y and on average above the theoretical results of V. Sokolov and O. Zhirov, Phys. Rev. E 91, 052917 (2015). We also show that for the partially chaotic rectangular billiard the enhancement factor W calculated by applying the Potter-Rosenzweig model with κ = 2.8 ± 0.5 is close to the experimental one.
doi:10.12693/aphyspola.128.974 fatcat:hyql6ggayndzjdipmiea56csty