2009/02/28 by B. Dietz, T. Friedrich, H. L. Harney +5 · 2 citations
Physics and Astronomy · #nlin.CD #cond-mat.other
paper · pdf · doi:10.1103/physrevlett.103.064101
published as Phys. Rev. Lett. 103, 064101 (2009)
arxiv created 2009/07/30 · arxiv updated 2015/05/12
We measure the complex scattering amplitudes of a flat microwave cavity (a "chaotic billiard"). Time-reversal T-invariance is partially broken by a magnetized ferrite placed within the cavity. We extend the random-matrix approach to T-violation in scattering, fit some of the properties of the scattering amplitudes, and then successfully predict others. Our work constitutes the most precise test of the theoretical approach to T-violation within the framework of random-matrix theory so far available.