Diffractive orbits in an open microwave billiard

Details Diffractive orbits in an open microwave billiard Diffractive orbits in an open microwave billiard

1999-06-23

arxiv.org/abs/quant-ph/9906087v1

Phys.Rev.Lett. 83 (1999) 5342-5345

Physics

Quantum Physics

6 figures, submitted to PRL

Scientific paper

10.1103/PhysRevLett.83.5342

We demonstrate the existence and significance of diffractive orbits in an open microwave billiard, both experimentally and theoretically. Orbits that diffract off of a sharp edge strongly influence the conduction spectrum of this resonator, especially in the regime where there are no stable classical orbits. On resonance, the wavefunctions are influenced by both classical and diffractive orbits. Off resonance, the wavefunctions are determined by the constructive interference of multiple transient, nonperiodic orbits. Experimental, numerical, and semiclassical results are presented.

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