2015/03/05 by A. Rokhlenko, Alexander Rokhlenko
Computer Science · Physics and Astronomy · #Amplitude #Atom (system on chip) #Atomic physics #Ion #Ionization #Laser-Matter Interactions and Applications #Perturbation theory (quantum mechanics) #Photon #Physics #Quantum Information and Cryptography #Quantum electrodynamics #Quantum mechanics #Spectroscopy and Quantum Chemical Studies #Tunnel ionization #physics.atm-clus #physics.atom-ph
paper · pdf · doi:10.1063/1.4964615
14 pages, 13 figures (but 9 captions, i.e. in the form: 1,2a+2b,3a+3b,4a+4b,5a+5b,6,7,8,9)
arxiv created 2015/03/05 · openalex publication_date 2016/10/01 · arxiv updated 2016/11/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Our exact theory for continuous harmonic perturbation of a one dimensional model atom by parametric variations of its potential is generalized for the cases when (a) the atom is exposed to short pulses of an external harmonic electric field and (b) the forcing is represented by short bursts of different shape changing the strength of the binding potential. This work is motivated not only by the wide use of laser pulses for atomic ionization, but also by our earlier study of the same model which successfully described the ionization dynamics in all orders, i.e., the multi-photon processes, though being treated by the non-relativistic Schrödinger equation. In particular, it was shown that the bound atom cannot survive the excitation of its potential caused by any non-zero frequency and amplitude of the continuous harmonic forcing. Our present analysis found important laws of the atomic ionization by short pulses, in particular the efficiency of ionizing this model system and presumably real ones as well.