Perturbative and nonperturbative photoionization of H-2 and H2O using the molecular R-matrix-with-time method

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10423677" target="_blank" >RIV/00216208:11320/20:10423677 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Ga-eM9smyz" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=Ga-eM9smyz</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.102.052826" target="_blank" >10.1103/PhysRevA.102.052826</a>

Result language
angličtina
Original language name
Perturbative and nonperturbative photoionization of H-2 and H2O using the molecular R-matrix-with-time method
Original language description
The ab initio R-matrix with time method has recently been extended to allow simulation of fully nonperturbative multielectron processes in molecules driven by ultrashort arbitrarily polarized strong laser fields. Here we demonstrate the accuracy and capabilities of the current implementation of the method for two targets: We study single-photon and multiphoton ionization of H-2 and one-photon and strong-field ionization of H2O and compare the results to available experimental and theoretical data as well as our own time-independent R-matrix calculations. We obtain a highly accurate description of total and state-to-state single-photon ionization of H2O and, using a simplified coupled-channel model, we show that state coupling is essential to obtain qualitatively correct results and that its importance as a function of laser intensity changes. We find that electron correlation plays a more important role at low intensities (up to approximately 50 TW/cm(2)).
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10300 - Physical sciences

Project
<a href="/en/project/GJ20-15548Y" target="_blank" >GJ20-15548Y: New mechanisms of damage of DNA driven by electrons and ultraviolet light.</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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