Blar i Institutt for fysikk på emneord "Physics (MSPHYS)"
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A Bosonic Coherent State Path Integral Representation for Spin Systems based on a Projection Operator Implementation of the Schwinger boson number constraint
(Master thesis, 2018)The path integral single spin partition function in the basis of boson coherent states, for a general normal ordered two-mode Schwinger boson Hamiltonian, has been computed. Within the initial phase of the calculational ... -
A Simulated Annealing Approach to Electrical Resistivity Tomography
(Master thesis, 2018)In this study, a new approach to Electrical Resistivity Tomography (ERT) data inversion was investigated. ERT is a geophysical method for imaging the subsurface. An electrical current is injected into the surface, and the ... -
Analysis of the ZnO/Cu2O Thin Film Heterojunction for Intermediate Band Solar Cell Applications
(Master thesis, 2015)In an attempt to increase the maximum theoretical efficiency of solar cells, one proposed device is called intermediate band solar cells (IBSC). The candidate material system chosen for this study is nitrogen doped cuprous ... -
Applications of the Goldstone equivalence theorem to scattering and decay processes
(Master thesis, 2018)We study applications of the Goldstone boson equivalence theorem to decay and scattering processes, exemplifying the broken gauge theory structure of electroweak interactions. Apart from interest on theoretical grounds, ... -
Approaches to Numerical Simulations of Causal Sets
(Master thesis, 2018)This project found mixed results for the class of so-called Feynman posets, partially ordered sets with a maximum vertex degeneracy of three. Sets that admit "Y" shaped vertices (so-called "no holes" posets) pass several ... -
Biophysical Studies of Light Sensitive Chromophores in Rat Glioma and Chinese Hamster Ovary Cancer Cells
(Master thesis, 2015)The aim of this study was to investigate the biophysical properties of four light sensitive chromophores as a fluorescence dye for bioimaging applications, or photosensitizer in photodynamic therapy (PDT). Characterization ... -
Characterization of anisotropy in articular cartilage samples using magnetic resonance imaging (MRI) and multiphoton microscopy (MPM)
(Master thesis, 2016)Articular cartilage is a thin flexible tissue found at the ends of the bones in a joint that provides a lubricated surface for articulation and distribute loads with low friction. However, due to degenerative diseases, ... -
Cosmic Rays from Pair-Instability Supernova Remnants
(Master thesis, 2015)Pair-instability supernovae are the most energetic thermonuclear explosions in the Universe, up to 100 times more energetic than type Ia supernovae. Around redshift z > 6 approximately one out of ten supernovae was a ... -
Density Functional Theory Studies of Precipitate Interfaces in Aluminium Alloys, with Focus on Theta'-Al2Cu
(Master thesis, 2016)The atomic structure of bulk crystal of aluminium and the precipitate phase $\theta^\prime$ connected to age-hardening of Al-Cu alloys have been studied using Density Functional Theory (DFT). The lattice constant of ... -
Developing Methods and Tools for Three-Dimensional Computational Reconstructions in X-ray and Visible Light Microscopy
(Master thesis, 2015)In this thesis possibilities for further developments in microscopy have been explored. This was done through two sub-projects: The first project was on small-angle X-ray (SAXS) tomography, and the second revolved around ... -
Development of a compact radiation monitor for space application
(Master thesis, 2015)In this work a compact radiation monitor prototype has been developed. The present device and its technology will directly contribute towards the CPT-SCOPE project, a Norwegian-German student project developing a radiation ... -
Drag and Phases in Interacting and Spin-Orbit Coupled Superfluid Bose-Einstein Condensates
(Master thesis, 2018)Motivated by previous work on drag effects in superfluid Bose-Einstein condensates, the Bose-Hubbard model on the square lattice is considered using mean-field theory, and a method for computing the superfluid drag density ... -
Electronic Properties of Si as an Intermediate Band Solar Cell - A Density Functional Theory Study
(Master thesis, 2018)Crystalline silicon is widely used as a solar cell material in modern day society. This report investigates the possibility of adding an additional energy band placed within the conventional band gap, in order to increase ... -
Estimation of Design Snow Loads on Offshore Structures in the Barents Sea
(Master thesis, 2016)Snow accumulating on offshore structures can reduce freeboard and stability, block equipment and valves, and reduce operability of the platform or ship. It is thus important to evaluate snow conditions before starting long ... -
Flavor Oscillations of High-Energy Neutrinos
(Master thesis, 2016)In this thesis, we study neutrino oscillations in vacuum and in the presence of a Dark Matter halo in the Milky Way. For that purpose, first describe the particle physics of neutrinos through an historical introduction. ... -
Goldstone bosons at finite density - Study of spontaneous symmetry breaking in O(N)-symmetric theories at finite chemical potential
(Master thesis, 2017)Goldstone s theorem states that, in presence of Lorentz invariance, the number of massless modes that appear after spontaneous symmetry breaking coincides with the number of broken generators. These modes are called Goldstone ... -
Graphene Saturable Absorber Mirrors for 2-3 μm Lasers
(Master thesis, 2018)This thesis is devoted to the development of graphene saturable absorber mirrors for ultrafast applications in the mid-infrared. It covers from the fabrication of the graphene saturable absorber mirrors via graphene transfer ... -
High Temperature Decomposition of Methane on Quartz Pellets
(Master thesis, 2015)This work has shown that pure methane, when exposed to quartz at a temperatures of 900°C and 1000°C, cracks and deposits carbon at a near constant rate. The deposition rates for the individual temperature levels were shown ... -
Interplay Between Supercurrent and Magnetization in Josephson Junctions
(Master thesis, 2015)The interplay between ferromagnetic and superconducting order in hybrid structures has in recent years attracted considerable interest due to the rich quantum physics that emerges in such systems in addition to their ... -
Investigating the Local Load Sharing Fibre Bundle Model in Higher Dimensions
(Master thesis, 2015)We introduce a generalization of the history-independent local load sharing fibre bundle model that is valid in arbitrarily high dimensions, and study this model numerically in one to five dimensions. Simulations show ...