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Algebraic decay of the survival probability in chaotic helium

URN to cite this document:
urn:nbn:de:bvb:355-epub-15035
Schlagheck, Peter ; Buchleitner, A.
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Date of publication of this fulltext: 05 Aug 2009 13:30


Abstract

We demonstrate that the classical helium atom exhibits algebraic decay of the survival probability in the autoionizing {\it eZe} configuration. Excitation towards asymptotic orbits of marginal stability is identified as the cause of the nonexponential decay. Since one electron travels along a bound Kepler trajectory of infinite excitation in these orbits, we argue that the classical decay ...

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