Distribution of eigenmodes in a superconducting stadium billiard with chaotic dynamics

H.-D. Gräf; H. L. Harney; H. Lengeler; C. H. Lewenkopf; C. Rangacharyulu; A. Richter; P. Schardt; H. A. Weidenmüller

doi:10.1103/PhysRevLett.69.1296

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Distribution of eigenmodes in a superconducting stadium billiard with chaotic dynamics

H.-D. Gräf, H. L. Harney, H. Lengeler, C. H. Lewenkopf, C. Rangacharyulu, A. Richter, P. Schardt, H. A. Weidenmüller

DOI 10.1103/PhysRevLett.69.1296 · Physical Review Letters

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Abstract

The complete sequence of 1060 eigenmodes with frequencies between 0.75 and 17.5 GHz of a quasi-two-dimensional superconducting microwave resonator shaped like a quarter of a stadium billiard with a Q value of Q≊105–107 was measured for the first time. The semiclassical analysis is in good agreement with the experimental data, and provides a new scheme for the statistical analysis and comparison with predictions based on the Gaussian orthogonal ensemble.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	2	Pressure not reported	unknown