FACULTY OF TECHNOLOGY AND SOCIETY | Lecture
Honorary doctorate lecture – Gediminas Gaigalas
Wednesday 23 October, 13:15 - 14:30
Niagara, Auditorium C, Nordenskiöldsgatan 1
Welcome to the honorary doctorate lecture of Professor Gediminas Gaigalas!
The title of the lecture is 'Atomic Theory for Next Generation Energy'.
Gediminas Gaigalas, professor at Vilnius University, is appointed honorary doctor at the Faculty of Technology and Society. Professor Gaigalas is an outstanding researcher who has made significant contributions to the Faculty's field of research.
The lecture will be held in Auditorium C, on the ground floor of the Niagara University building, and will also be available via livestream. A link to the live stream will be published in this calendar event as the lecture approaches.
Moderator: Per Jönsson
Abstract
Only the theory of the atom, developed within the framework of quantum theory, provides a good description of the phenomena associated with the atom. However, such a description is complex and requires sophisticated mathematical methods. A review of methods of efficient accounting for correlation and relativistic effects is presented. A considerable part of the efforts in these approaches must be devoted to coping with integrations over spin-angular variables, occurring in the matrix elements of the operators under consideration.
Efficient methods for finding these quantities are discussed, based on the use of symmetry properties of operators and matrix elements in three spaces (orbital, spin and quasispin), on second quantisation in coupled tensorial form, and on graphical technique. This allows us to study and generate fairly accurate spectroscopic data for practically any atom and ion of the periodic table. As one example of the application of the theory, the contribution of the theory of the atom to the creation of a new generation of electric power plants based on fusion plasma is discussed.
