Comment on ``Origin of light-induced states in intense laser fields and their observability in photoelectron spectra''

Details Comment on ``Origin of light-induced states in intense laser fields and their observability in photoelectron spectra'' Comment on ``Origin of light-induced states in intense laser fields and their observability in photoelectron spectra''

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005phrva..71a7401s&link_type=abstract

Physical Review A, vol. 71, Issue 1, id. 017401

Physics

1

Strong-Field Excitation Of Optical Transitions In Quantum Systems, Multiphoton Processes, Dynamic Stark Shift, Photoionization Of Atoms And Ions, Multiphoton Ionization And Excitation To Highly Excited States

Scientific paper

We report discrepancies between the results presented in Fig. 1 of a recent paper of

Yasuike and Someda [Phys. Rev. A 66, 053410 (2002)

] and our independent calculation. At the frequency ω=0.55 a.u. , we find that the state of the one-dimensional modified Pöschl-Teller potential, described by the authors as light induced and originating from a shadow of the field-free ground state, is in fact physical for α0 <10 a.u. and its origin is the zero-energy antibound state of the bare potential. For ω=0.45 a.u. , we also find differences in one of the presented quasienergy trajectories in the low α0 region ( α0 <0.4 a.u.) , but we confirm the starting point at E=-0.5 a.u. for both quasienergies, as found by Yasuike and Someda.

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