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dc.contributor Graduate Program in Physics.
dc.contributor.advisor Bleeken, Dieter Van den.
dc.contributor.author Pazarbaşı, Cihan.
dc.date.accessioned 2023-03-16T10:37:12Z
dc.date.available 2023-03-16T10:37:12Z
dc.date.issued 2015.
dc.identifier.other PHYS 2015 P38
dc.identifier.uri http://digitalarchive.boun.edu.tr/handle/123456789/13593
dc.description.abstract In quantum mechanics, perturbation theories have crucial importance for almost any practical calculation. However, perturbative expansions are generally asymptotic series due to the singularities on the complex couping constant plane. In these cases, there is a non-zero error for the perturbative series. The divergent behaviour of an perturbative expansion can also be examined by using the non-perturbative techniques, such as WKB approximation and instanton methods. Futhermore, the nonperturbative methods can also be used to improve the error. In this thesis, instanton methods are applied to the perturbed Dyon atom. After a detailed discussion about the divergences of perturbation theory, the divergent behaviour of the energy coe cients of the one dimensional anharmonic oscillator is estimated by instanton methods. Then, the divergent behaviour of the perturbation series of the Dyon atom is calculated by a map from the estimation of 4 dimensional anharmonic oscillator, which is again done by instanton methods.
dc.format.extent 30 cm.
dc.publisher Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015.
dc.subject.lcsh Instantons.
dc.subject.lcsh Mathematical physics.
dc.title Instanton methods and the dyon atom
dc.format.pages xii, 131 leaves ;


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