  Flat microwave cavities can be used to experimentally simulate quantum
mechanical systems. By coupling two such cavities, we study the equivalent to
the symmetry breaking in quantum mechanics. As the coupling is tunable, we can
measure resonance strength distributions as a function of the symmetry
breaking. We analyze the data employing a qualitative model based on Random
Matrix Theory (RMT) and show that the results derived from the strength
distribution are consistent with those previously obtained from spectral
statistics.
