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| Título: | Time-dependent density-functional theory of strong-field Ionization of atoms under soft X-rays |
Autor: | Crawford-Uranga, A. CSIC; Giovannini, Umberto de CSIC ORCID; Räsänen, E.; Oliveira, Micael J. T.; Mowbray, Duncan J. CSIC ORCID; Lambropoulos, P.; Kurth, S. CSIC ORCID; Rubio, Angel CSIC ORCID | Fecha de publicación: | 2014 | Editor: | American Physical Society | Citación: | Physical Review A 90(3): 033412 (2014) | Resumen: | We demonstrate the capabilities of time-dependent density functional theory (TDDFT) for strong-field, short wavelength (soft X-ray) physics, as compared to a formalism based on rate equations. We show that TDDFT provides a very good description of the total and individual ionization yields for Ne and Ar atoms exposed to strong laser pulses. We assess the reliability of different adiabatic density functionals and conclude that spatial and temporal non-localities in the exchange and correlation kernel are crucial for obtaining the correct ionization yield over a wide range of intensities (1013–1016 W/cm2 ). Our TDDFT calculations disentangle the contribution from each ionization channel using the Kohn-Sham wavefunction as an approximation to the exact one. | Descripción: | Under the terms of the Creative Commons Attribution License 3.0 (CC-BY).-- et al. | Versión del editor: | http://dx.doi.org/10.1103/PhysRevA.90.033412 | URI: | http://hdl.handle.net/10261/94546 | DOI: | 10.1103/PhysRevA.90.033412 | ISSN: | 1050-2947 | E-ISSN: | 1094-1622 |
| Aparece en las colecciones: | (CFM) Artículos |
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| Time-dependent density-functional.pdf | 674,68 kB | Adobe PDF |  Visualizar/Abrir |
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