Effects of a soft-core coulomb potential on the dynamics of a hydrogen atom near a metal surface
Fecha
2019Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión aceptada / Onetsi den bertsioa
Identificador del proyecto
Impacto
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10.1016/j.cnsns.2018.07.039
Resumen
The goal of this paper is to investigate the effects that the replacement of the Coulomb potential by a soft-core Coulomb potential produces in the classical dynamics of a perturbed Rydberg hydrogen atom. As example, we consider a Rydberg hydrogen atom near a metal surface subjected to a constant electric field in the electron-extraction regime. Thence, the dynamics of the real perturbed Coulomb ...
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The goal of this paper is to investigate the effects that the replacement of the Coulomb potential by a soft-core Coulomb potential produces in the classical dynamics of a perturbed Rydberg hydrogen atom. As example, we consider a Rydberg hydrogen atom near a metal surface subjected to a constant electric field in the electron-extraction regime. Thence, the dynamics of the real perturbed Coulomb system, studied by applying the Levi–Civita regularization, is compared with that of the softened one. The results of this study show that the global behavior of the system is significantly altered when the original Coulomb potential part is replaced by a soft-core potential. [--]
Materias
Coulomb-like potential,
Soft-core potential approximation,
Periodic orbits,
Ionization dynamics
Editor
Elsevier
Publicado en
Communications in Nonlinear Science and Numerical Simulation, 68 (2019) 94–105
Departamento
Universidad Pública de Navarra. Departamento de Estadística, Informática y Matemáticas /
Nafarroako Unibertsitate Publikoa. Estatistika, Informatika eta Matematika Saila /
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute for Advanced Materials and Mathematics - INAMAT2
Versión del editor
Entidades Financiadoras
This work has been partially supported by MTM2014-59433-C2-1-P and MTM2014-59433-C2-2-P of the Ministry of Economy
and Competitiveness of Spain and MTM2017-88137-C2-1-P and MTM2017-88137-C2-2-P of the Ministry of Economy, Industry and Competitiveness of Spain.