{"id":12501,"date":"2018-03-09T08:58:22","date_gmt":"2018-03-09T08:58:22","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/espectroscopia-atomica-en-campos-electricos-y-magneticos-intensos\/"},"modified":"2018-03-09T08:58:22","modified_gmt":"2018-03-09T08:58:22","slug":"espectroscopia-atomica-en-campos-electricos-y-magneticos-intensos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/matematicas\/espectroscopia-atomica-en-campos-electricos-y-magneticos-intensos\/","title":{"rendered":"Espectroscopia atomica en campos electricos y magneticos intensos"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Rosario Gonzalez Ferez <\/strong><\/h2>\n<p>En esta memoria se presenta un marco o m\u00e9todo computacional, que permite calcular de forma no-relativista los estados ligados y las resonancias de los sistemas atomicas en presencia de campos magneticos y\/o electricos externos de intensidad arbitraria. No se consideran los efectos relativistas; se cree que no juegan un papel importante para campos magneticos de intensidad b &lt; a-2 = 2.10 4 u.A., Que es el valor de b para el cual m e c2=    wc, donde wc es la frecuencia ciclotron. Se centra la atenci\u00f3n en los sistemas monoelectronicos: atomos hidrogenoides, sistemas modelo (e.G. Potenciales de hulthen y yukawa) y algunos atomos ligeros, no-hidrogenoides, si bien dentro de la aproximacion de un solo electron activo. Ademas se analizan las secciones eficaces de fotoionizacion para el hidrogeno y varios atomos alcalinos en ausencia de campos, y para el hidrogeno sometido a campos externos.  para el calculo de los estados ligados, este marco contempla tres ingredientes numercios: (i) un algoritmo de discretizaci\u00f3n, a saber el metodo de representacion en variable discreta, que transforma el problema tridimensional inicial en un sistema de ecuaciones diferenciales acopladas monodimensionales en la variable radial. (Ii) un metodo de elementos finitos, que resuelve el sistema anterior transformandolo en un problema generalizado de autovalores de una matriz real y simetrica (iii) un metodo de tipo lanczos que diagonaliza la matriz cuasivacia resultante. Se presentan tres variantes del metodo. una trabaja en coordenadas esfericas y utiliza las funciones asociadas de legendre como base del algoritmo que representacion en variable discreta. las otras dos trabajan en coordenadas cilindricas y usan las funciones de laguerre y de landau.  para el calculo de las resonancias este marco computacional necesita otro ingrediente. (Iu) metodo de la rotacion a coordenada compleja que proporciona la continuacion analitica del hamiltonianao del sistema en e<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Espectroscopia atomica en campos electricos y magneticos intensos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Espectroscopia atomica en campos electricos y magneticos intensos <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Rosario Gonzalez Ferez <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Granada<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 23\/07\/2001<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Jes\u00fas S\u00e1nchez Dehesa Moreno Cid<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Francisco Marcellan espa\u00f1ol <\/li>\n<li>carmen Garcia recio (vocal)<\/li>\n<li>peter Schmelcher (vocal)<\/li>\n<li>alfonso Hernandez laguna (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Rosario Gonzalez Ferez En esta memoria se presenta un marco o m\u00e9todo computacional, que permite calcular de [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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