Ericson fluctuations in the chaotic ionization of the hydrogen atom in crossed magnetic and electric fields
- 27 July 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 69 (4) , 586-589
- https://doi.org/10.1103/physrevlett.69.586
Abstract
We report exact quantum calculations for the hydrogen atom in crossed magnetic and electric fields. Employing the complex-coordinate-rotation method we are able to extend the calculations of eigenstates far into the continuum region. Calculated photoionization cross sections are found to exhibit strong Ericson fluctuations, a characteristic feature of chaotic scattering. This interpretation is supported by classical trajectory calculations which reveal a fractal dependence of the classical ionization time on the initial conditions.Keywords
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