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Pré-Publication, Document De Travail Année : 2003

A realistic example of chaotic tunneling: The hydrogen atom inparallel static electric and magnetic fields

Résumé

Statistics of tunneling rates in the presence of chaotic classicaldynamics is discussed on a realistic example: a hydrogen atomplaced in parallel uniform static electric and magnetic fields, wheretunneling is followed by ionization along the fields direction.Depending on the magnetic quantum number, one may observe eithera standard Porter-Thomas distribution of tunneling rates or,for strong scarring by a periodic orbit parallel to the externalfields, strong deviations from it. For the latter case, a simple model based onrandom matrix theory gives the correct distribution.
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Dates et versions

hal-00000515 , version 1 (22-07-2003)

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Dominique Delande, Jakub Zakrzewski. A realistic example of chaotic tunneling: The hydrogen atom inparallel static electric and magnetic fields. 2003. ⟨hal-00000515⟩
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