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First experimental evidence for chaos-assisted tunneling in a microwave annular billiard | C Dembowski
; H Graf
; A Heine
; R Hofferbert
; H Rehfeld
; A Richter
; | Date: |
31 Jan 2000 | Journal: | Phys Rev Lett, 84 (5), 867-70 | Abstract: | We report on first experimental signatures for chaos-assisted tunneling in a two-dimensional annular billiard. Measurements of microwave spectra from a superconducting cavity with high frequency resolution are combined with electromagnetic field distributions experimentally determined from a normal conducting twin cavity with high spatial resolution to resolve eigenmodes with properly identified quantum numbers. Distributions of quasidoublet splittings serve as basic observables for the tunneling between whispering gallery-type modes localized to congruent, but distinct tori which are coupled weakly to irregular eigenstates associated with the chaotic region in phase space. | Source: | PubMed, pmid11017392 | Services: | Forum | Review | Favorites |
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