Abstract
We measure the complex scattering amplitudes of a flat microwave cavity (a “chaotic billiard”). Time-reversal () invariance is partially broken by a magnetized ferrite placed within the cavity. We extend the random-matrix approach to violation in scattering, determine the parameters from some properties of the scattering amplitudes, and successfully predict others. Our work constitutes the most precise test of the random-matrix theoretical approach to violation so far available.
- Received 21 January 2009
DOI:https://doi.org/10.1103/PhysRevLett.103.064101
©2009 American Physical Society