Electron correlation in the Quasi Sturmian approach for two-electron continuum problems

29th International Conference on Photonic, Electronic, and Atomic Collisions

Zaytsev, A.S.^1 ; Granados-Castro, C.M.^2 ; Ancarani, L.U.^2 ; Gasaneo, G.^3,4 ; Zaytsev, S.A.^1

Pacific National University, Khabarovsk

680035, Russia^1

Equipe TMS, SRSMC, UMR CNRS 7565, Université de Lorraine, Metz

57078, France^2

Departamento de Fisica, Universidad Nacional Del sur, Bahia Blanca

8000, Argentina^3

Consejo Nacional de Investigaciones Cientificas y Técnicas (CONICET), Argentina^4

关键词: Basis functions;    Continuum problem;    Convergence rates;    Phase factor;    Sturmian;    Sturmian functions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/5/052072/pdf
DOI  :  10.1088/1742-6596/635/5/052072

来源: IOP

【 摘 要 】

The driven equation describing an (e, 3e) process on helium in the framework of the Temkin-Poet model is solved numerically using expansions of Convoluted Quasi Sturmian functions. As we observe first that the convergence rate of the solution is rather poor, we propose to significantly improve the expansion by introducing a phase factor corresponding the electron-electron interaction into the basis functions.