Molecular orbitals and strong-field approximation

Abstract

V.I. Usachenko and S.-I. Chu [Phys. Rev. A {\bf 71}, 063410 (2005)] discuss the molecular strong-field approximation in the velocity gauge formulation and indicate that some of our earlier velocity gauge calculations are inaccurate. Here we comment on the results of Usachenko and Chu. First, we show that the molecular orbitals used by Usachenko and Chu do not have the correct symmetry, and second, that it is an oversimplification to describe the molecular orbitals in terms of just a single linear combination of two atomic orbitals. Finally, some values for the generalized Bessel function are given for comparison.

4 pages, 3 figures

References in corpus (2)

• Strong-field approximation for intense-laser atom processes: the choice of gauge
• On the recombination in high-order harmonic generation in molecules

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• High-Order Harmonic Generation in Laser-Irradiated Homonuclear Diatomics: The Velocity Gauge Version of Molecular Strong-Field Approximation
• On Orientation Dependence of N2 Ionization: The Velocity Gauge Version of Molecular Strong-Field Approximation