Electron energy in quantum dots of different configurations

CC Tovstyuk - Molecular Crystals and Liquid Crystals, 2020 - Taylor & Francis
In this article, we compare the electron energies in the quantum dots of different
configurations and different barriers. We emphasize the parameter which effectively defines …

Topologically distinct Feynman diagrams for mass operator in electron-phonon interaction

CC Tovstyuk - Condensed Matter Physics, 2009 - dspace.nbuv.gov.ua
The new method for designing topologically distinct Feynman diagrams for electron's mass
operator in electronphonon interaction is developed using the permutation group theory …

Mass operator of the interacting electrons in formalism of permutation group theory

C Tovstyuk - International Journal of Modern Physics B, 2010 - World Scientific
Double permutation (DP) method is developed here for designing Feynman diagrams for
mass operator (MO) of interacting electrons in high orders of perturbation theory (PT). The …

Double permutation method of designing Feynman diagrams for mass operator of interacting electrons

C Tovstyuk - … Physics: Modern Trends and Applications: The …, 2009 - ui.adsabs.harvard.edu
We introduce the systematic algebraic method of designing Feynman diagrams for mass
operator (MO) of interacting electrons, based on permutation group theory. It permits to …