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Ionization and excitation of low-lying circular states of the hydrogen atom in strong circularly polarized laser fields
Jarosław H. Bauer, Zbigniew Walczak
We perform ab initio calculations for the hydrogen atom initially in one of the six circular bound states with the principal quantum numbers n = 2, 3 and 4, irradiated by a short c…
Keldysh theory re-examined: Application of the generalized Bessel functions
J. H. Bauer
A derivation of the ionization rate for the hydrogen-like ion in the strong linearly polarized laser field is presented. This derivation utilizes the famous Keldysh probability amp…
Ionization and excitation of the excited hydrogen atom in strong circularly polarized laser fields
J. H. Bauer, Francisca Mota-Furtado, Patrick F. O'Mahony +2
In the recent work of Herath et al. [Phys. Rev. Lett. 109, 043004 (2012)] the first experimental observation of a dependence of strong-field ionization rate on the sign of the magn…
Qualitatively Different Theoretical Predictions for Strong-Field Photoionization Rates
J. H. Bauer
We give examples showing that two well-known versions of the S-matrix theory, which describes a nonresonant multiphoton ionization of atoms and ions in intense laser fields, lead t…
Quasistatic limit of the strong-field approximation describing atoms in intense laser fields: Circular polarization
J. H. Bauer
In the recent work of Vanne and Saenz [Phys. Rev. A 75, 063403 (2007)] the quasistatic limit of the velocity gauge strong-field approximation describing the ionization rate of atom…
Lorentz force on an electron in a strong plane-wave laser field and the low-frequency limit for ionization
J. H. Bauer
A motion of a classical free charge in an electromagnetic plane wave can be found exactly in a fully relativistic case. We have found an approximate non-parameter form of the suita…