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DY: Fachverband Dynamik und Statistische Physik

DY 6: Poster Session I

DY 6.41: Poster

Montag, 22. März 2010, 16:00–18:00, Poster B2

Temporal decay of open quantum billiards — Stefan Bittner¹, Bruno Camargo¹, Barbara Dietz¹, Maksim Miski-Oglu¹, •Pedro Oria-Iriarte¹, Birgit Quast¹, Achim Richter^1,2, and Florian Schäfer^1,3 — ¹Institut für Kernphysik, Technische Universität Darmstadt, D-64289, Darmstadt, Germany — ²LENS, University of Florence, I-50019 Sesto-Fiorentino, Italy — ³ECT, Villa Tambosi, Villazzano, I-38100 Trento, Italy

The decay probability in open quantum billiards with regular and chaotic dynamics is explored by means of experiments on superconducting microwave cavities with openings on the boundary. The scattering-matrix formalismus is used to quantify the leaked microwave flux at the opening. The decay behavior is closely related to the resonance widths. In the semiclassical regime, the decay resembles the corresponding classical probability of escape. The field distributions of some modes play also a crucial role.

This work is supported by DFG through SFB 634.