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DY: Fachverband Dynamik und Statistische Physik
DY 6: Poster Session I
DY 6.41: Poster
Monday, March 22, 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 Richter1,2, and Florian Schäfer1,3 — 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.