Experimental investigation of a regime of Wigner ergodicity in microwave rough billiards
Abstract
We study experimentally a new regime of Wigner ergodicity [K.M. Frahm and D.L. Shepelyansky, Phys. Rev. Lett. 79, 1833 (1997)] in a microwave rough billiard. We show that in the Wigner regime, eigenstates are extended over the whole energy surface but have a strongly peaked nonergodic structure. The Shannon width of the eigenstate distributions is calculated to estimate their spreads and to find their departure from the ergodic distributions.
- Publication:
-
Physical Review E
- Pub Date:
- April 2001
- DOI:
- 10.1103/PhysRevE.63.046208
- Bibcode:
- 2001PhRvE..63d6208H
- Keywords:
-
- 05.45.Mt;
- Quantum chaos;
- semiclassical methods