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Phys. Rev. A 66, 053406 (2002) [9 pages]

Chaotic scattering from hydrogen atoms in a circularly polarized laser field

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Elias Okon, William Parker, Will Chism, and Linda E. Reichl
Center for Studies in Statistical Mechanics and Complex Systems, The University of Texas at Austin, Austin, Texas 78712

Received 31 May 2002; published 15 November 2002

We investigate the classical dynamics of a hydrogen atom in a circularly polarized laser beam with finite radius. The spatial cutoff for the laser field allows us to use scattering processes to examine the laser-atom dynamics. We find that for certain field parameters, the delay times, the angular momentum, and the distance of closest approach of the scattered electron exhibit fractal behavior. This fractal behavior is a signature of chaos in the dynamics of the atom-field system.

© 2002 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.66.053406
DOI:
10.1103/PhysRevA.66.053406
PACS:
42.50.Hz, 32.80.Rm, 03.65.Nk