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      Spectral properties of Bunimovich mushroom billiards

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          Abstract

          Properties of a quantum mushroom billiard in the form of a superconducting microwave resonator have been investigated. They reveal unexpected nonuniversal features such as, e.g., a supershell effect in the level density and a dip in the nearest-neighbor spacing distribution. Theoretical predictions for the quantum properties of mixed systems rely on the sharp separability of phase space - an unusual property met by mushroom billiards. We however find deviations which are ascribed to the presence of dynamic tunneling.

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          Journal
          13 March 2007
          10.1103/PhysRevE.75.035203
          nlin/0703024
          Custom metadata
          Phys. Rev. E 75, 035203(R) (2007)
          4 pages, 7 .eps-figures
          nlin.CD cond-mat.stat-mech quant-ph

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