Schlagheck, Peter and Buchleitner, A. (2001) Algebraic decay of the survival probability in chaotic helium. Physical Review A 60, 024701.
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Other URL: http://link.aps.org/abstract/PRA/v63/e024701
We demonstrate that the classical helium atom exhibits algebraic decay of the survival probability in the autoionizing 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 law will prevail in the quantum dynamics of a wave packet launched along the configuration.
|Subjects:||500 Science > 530 Physics|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||20 Mar 2007|
|Last Modified:||05 Aug 2009 13:30|