Browsing by Subject "Perturbation (Quantum dynamics)"
Now showing items 1-4 of 4
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Branch-point structure and energy level calculations of diamagnetic hydrogen using dimensional perturbation theory.
(2000)This dissertation describes the results of research that covers two distinct areas relevant to the field of physics: atomic theory and applied numerical analysis. In the first phase of this research the avoided crossings ... -
Confined Quantum Systems: Beyond Harmonic Order in Dimensional Perturbation Theory
(2008)We generalize the harmonic-order N-body DPT method for an isotropically confined quantum system of identical interacting bosons to first-anharmonic order and, in principle, higher orders. We introduce a graphical decomposition ... -
Many-body dimensional perturbation theory for quantum confined systems with a focus on atomic gas Bose-Einstein condensates.
(2003)Feshbach resonances notwithstanding, most experimentally realized atomic-vapor condensates are dilute and are best described by the mean-field Gross-Pitaevskii equation. For this reason, we use dimensional scaling methods ... -
Time-dependent perturbation theory approach to the quantum motion of a particle in a Paul trap.
(2013)The main objective of this study is to investigate the quantum mechanical lifetime of a trapped ion in a Paul trap. The motivation for this research is that there are several applications of trapped ion devices such as ...