Gauge independent theory applied to a model of atomic ionization by an intense laser pulse

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An explicitly gauge invariant strong field theory is introduced and tested using a model laser-atom interaction. The theory relies on a power series in the target potential. Transitions amplitudes are obtained by using a corresponding series in the momentum space wave function. We demonstrate that t...

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Autores principales: Rodríguez, V.D., Barrachina, R.O.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14346060_v64_n2-3_p593_Rodriguez
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_14346060_v64_n2-3_p593_Rodriguez
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spelling todo:paper_14346060_v64_n2-3_p593_Rodriguez2023-10-03T16:15:44Z Gauge independent theory applied to a model of atomic ionization by an intense laser pulse Rodríguez, V.D. Barrachina, R.O. An explicitly gauge invariant strong field theory is introduced and tested using a model laser-atom interaction. The theory relies on a power series in the target potential. Transitions amplitudes are obtained by using a corresponding series in the momentum space wave function. We demonstrate that this approach is explicitly gauge invariant to all orders. A well know 1D delta function potential model is used to test the convergence of the series in the evaluation of total ionization probabilities and ionization spectra. Actually, the convergence is verified when both, the perturbation as well as the order of the expansion, are increased. © 2011 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_14346060_v64_n2-3_p593_Rodriguez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description An explicitly gauge invariant strong field theory is introduced and tested using a model laser-atom interaction. The theory relies on a power series in the target potential. Transitions amplitudes are obtained by using a corresponding series in the momentum space wave function. We demonstrate that this approach is explicitly gauge invariant to all orders. A well know 1D delta function potential model is used to test the convergence of the series in the evaluation of total ionization probabilities and ionization spectra. Actually, the convergence is verified when both, the perturbation as well as the order of the expansion, are increased. © 2011 EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg.
format JOUR
author Rodríguez, V.D.
Barrachina, R.O.
spellingShingle Rodríguez, V.D.
Barrachina, R.O.
Gauge independent theory applied to a model of atomic ionization by an intense laser pulse
author_facet Rodríguez, V.D.
Barrachina, R.O.
author_sort Rodríguez, V.D.
title Gauge independent theory applied to a model of atomic ionization by an intense laser pulse
title_short Gauge independent theory applied to a model of atomic ionization by an intense laser pulse
title_full Gauge independent theory applied to a model of atomic ionization by an intense laser pulse
title_fullStr Gauge independent theory applied to a model of atomic ionization by an intense laser pulse
title_full_unstemmed Gauge independent theory applied to a model of atomic ionization by an intense laser pulse
title_sort gauge independent theory applied to a model of atomic ionization by an intense laser pulse
url http://hdl.handle.net/20.500.12110/paper_14346060_v64_n2-3_p593_Rodriguez
work_keys_str_mv AT rodriguezvd gaugeindependenttheoryappliedtoamodelofatomicionizationbyanintenselaserpulse
AT barrachinaro gaugeindependenttheoryappliedtoamodelofatomicionizationbyanintenselaserpulse
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