S Huang et al 2007 J. Phys. B: At. Mol. Opt. Phys. 40 F181 doi:10.1088/0953-4075/40/11/F02
How periodic orbit bifurcations drive multiphoton ionization
FREE ARTICLES Huang1, C Chandre2 and T Uzer1
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The multiphoton ionization of hydrogen by a strong bichromatic microwave field is a complex process prototypical for atomic control research. Periodic orbit analysis captures this complexity: through the stability of periodic orbits we can match qualitatively the variation of experimental ionization rates with a control parameter, the relative phase between the two modes of the field. Moreover, an empirical formula reproduces quantum simulations to a high degree of accuracy. This quantitative agreement shows how short periodic orbits organize the dynamics in multiphoton ionization.
- PACS
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32.80.Rm Multiphoton ionization and excitation to highly excited states
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- Dates
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Issue 11 (14 June 2007)
Received 24 April 2007, in final form 25 April 2007
Published 23 May 2007
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How periodic orbit bifurcations drive multiphoton ionization
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