Title
Određivanje Štarkovog pomaka i stope jonizacije atomskih sistema sa jednim i sa dva aktivna elektrona u spoljašnjem električnom polju metodom kompleksne rotacije
Creator
Milošević, Milan Z. 1976-
Copyright date
2017
Object Links
Select license
Autorstvo-Nekomercijalno-Bez prerade 3.0 Srbija (CC BY-NC-ND 3.0)
License description
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Language
Serbian
Cobiss-ID
Theses Type
Doktorska disertacija
description
Datum odbrane: 20.02.2018.
Other responsibilities
mentor
Simonović, Nenad
predsednik komisije
Mančev, Ivan. 1960-
član komisije
Grozdanov, Tasko.
član komisije
Stamenković, Suzana, 1974-
član komisije
Šišović, Nikola, 1965-
Academic Expertise
Prirodno-matematičke nauke
Academic Title
-
University
Univerzitet u Nišu
Faculty
Prirodno-matematički fakultet
Group
Odsek za fiziku
Alternative title
Determination of the Stark shift and ionization rates for atomic systems with one and with two active elektrons in external electric field by the complex rotation method
Publisher
[M. Z. Milošević]
Format
VI, 117 str.
description
Bibliografija: listovi 114-117.
description
Atomic molecular and optical physics
Abstract (en)
The subject of this Doctoral Dissertation is the study of atomic
systems in external static electric field, which can be described
using models with one or two active electrons. The main aim of the
dissertation is determination of the Stark shift of the lowest state
and the ionization rate (or the electron detachment rate in the case
of ions) depending on the field strength. The calculations are
performed using the complex rotation (scaling) method with the
expansion of trial wave functions in the basis of Coulomb Sturmians.
The sistems analyzed here are the hydrogen atom, alkali-metal
atoms (lithium, sodium, potassium, rubidium, cesium, francium),
helium atom, and the hydrogen negative ion. For alkali-metal atoms
several types of pseudopotential are used, while the two-electron
systems are studied by applying the exact two-electron description
as well as single-electron approximations. A good agreement with
the results of other authors, who used similar (numerical) methods,
and with the formulas of standard theoretical description in the case
of weak field, is obtained. An important result is also an analysis of
applicability of the methods and models used for the considered
system.
Authors Key words
rezonantna stanja, metod kompleksne rotacije, jonizacija,
pseudopotencijal, Štarkov pomak
Authors Key words
resonant states, complex rotation method, ionization,
pseudopotential, Stark shift
Classification
533.9:537.563.2]:621.3(043.3)
Subject
P 230
Type
Elektronska teza
Abstract (en)
The subject of this Doctoral Dissertation is the study of atomic
systems in external static electric field, which can be described
using models with one or two active electrons. The main aim of the
dissertation is determination of the Stark shift of the lowest state
and the ionization rate (or the electron detachment rate in the case
of ions) depending on the field strength. The calculations are
performed using the complex rotation (scaling) method with the
expansion of trial wave functions in the basis of Coulomb Sturmians.
The sistems analyzed here are the hydrogen atom, alkali-metal
atoms (lithium, sodium, potassium, rubidium, cesium, francium),
helium atom, and the hydrogen negative ion. For alkali-metal atoms
several types of pseudopotential are used, while the two-electron
systems are studied by applying the exact two-electron description
as well as single-electron approximations. A good agreement with
the results of other authors, who used similar (numerical) methods,
and with the formulas of standard theoretical description in the case
of weak field, is obtained. An important result is also an analysis of
applicability of the methods and models used for the considered
system.
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