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Masters Degrees (Physics)
Recent Submissions
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Developing new experimental techniques to investigate the co-linear cluster tri-partitioning
(Stellenbosch : Stellenbosch University, 2022-12)ENGLISH ABSTRACT: Computational simulations were developed to calculate data collection efficiency, as well as data accuracy for existing experimental setups used in the study of the exotic ternary decay of low excited ... -
Systematics of mean resonance spacing and average radiative width from random forest regression
(Stellenbosch : Stellenbosch University, 2022-12)ENGLISH ABSTRACT: The interaction of a nucleus with γ-rays plays a key role in a theoretical understanding of competi- tion in and components of nuclear reactions. The photon strength function (PSF) gives the average ... -
Radiation shielding design for sealed radioactive gamma-ray and neutron sources: measurements and modeling
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: Adequacy of the radiation shielding implemented for sealed radioactive sources used at the University was evaluated and improved. Three different setups were investi- gated; 1. neutron activation drum, ... -
Quantum computing on cloud-based processors
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: The noisy intermediate-scale quantum (NISQ) era refers to the current technological epoch permeated with quantum processors that are big enough (50-100 qubits) to be no longer trivially simulatable with ... -
Image analysis and theory of spatially confined cytoskeletal filaments
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: An existing self-consistent approach to calculating density was used to model linear as well as branched polymer networks within a selection of confining re- gions with hard-boundaries. Density and ... -
Motor protein transport on cytoskeleton networks
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: Motor proteins are able to propel themselves along the, sometimes branched and intersecting, directed filaments of the cytoskeleton, dragging various organelles and vesicles to their required destinations ... -
Vacuum polarization energy of a soliton with many internal degrees of freedom
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: The main objective of this thesis is to numerically compute the vacuum polarization energy (VPE) of solitons in a multi-component model by means of spectral methods. The VPE is the leading quantum ... -
Quantum optical modelling and experiments investigating the population evolution in atomic zinc and ytterbium-171 ions
(Stellenbosch : Stellenbosch University, 2022-04)ENGLISH ABSTRACT: This project sets out to derive, adapt and apply the four state optical Bloch equations to two very different experimental scenarios which are studied in our research group. These include modelling the ... -
Multi-spectral object tracking and prediction of kinematic quantities
(Stellenbosch : Stellenbosch University, 2021-12)ENGLISH ABSTRACT: The use of convolutional neural networks in object identification is well-documented and useful in a variety of applications. Particularly, when combined with a tracking algorithm such as SORT or DeepSORT, ... -
Universal scaling and dynamics at quantum phase transitions in the Kitaev Chain
(Stellenbosch : Stellenbosch University, 2021-12)ENGLISH ABSTRACT: Experimental advances in ultracold gases present physicists with the opportunity to explore a diverse range of new phenomena in a controllable manner. In turn, this has fuelled significant interest in ... -
Light sheet fluorescence microscopy
(Stellenbosch : Stellenbosch University, 2021-03)ENGLISH ABSTRACT: Light sheet fluorescence microscopy is a powerful tool within the in field of microscopy. The inherent advantages over other fluorescence microscopy techniques include high sectioning capabilities, ... -
Towards the development of a MIR NOPA for time-domain ptychography
(Stellenbosch : Stellenbosch University, 2021-03)ENGLISH ABSTRACT: This thesis discusses a noncollinear optical parametric amplifier as a source of ultrafast mid-infrared light for spectroscopic experiments and aims to provide a consistent method for the generation ... -
Radon levels in South African homes - design elements for a national survey and initial results from directed sampling
(Stellenbosch : Stellenbosch University, 2021-03)ENGLISH ABSTRACT: Radon (222Rn) is an inert, colourless, odourless radioactive gas that is generated by the alpha decay of radium (226Ra), a radionuclide in the uranium (238U) decay series. Radon (222Rn) is the primary ... -
A review of the measurement problem in quantum mechanics
(Stellenbosch : Stellenbosch University, 2021-03)ENGLISH ABSTRACT: Quantum Mechanics has been a massively successful theory, but for all its success it is at odds with our experiences at the macroscopic or classical level. This tension between the quantum and classical ... -
Data modelling & Bayesian model comparison with spherically symmetric priors
(Stellenbosch : Stellenbosch University, 2020-12)ENGLISH ABSTRACT: The analysis of data is common in many fields of science, and modelling data is one of the standard techniques in such analysis. Models are, of course, not unique and many theoretical models may be ... -
Laser frequency stabilization for trapped Yb+ experiments
(Stellenbosch : Stellenbosch University, 2020-12)ENGLISH ABSTRACT: This project sets out to frequency stabilize external cavity diode lasers of wavelengths = 935 nm and 739 nm, with an eye to Ytterbium-171 ion trapping. The desired laser linewidths were below 1 MHz ... -
Heavy-quark production via leptonic decays at forward rapidity in pp collisions with ALICE at the LHC
(Stellenbosch : Stellenbosch University, 2020-12)ENGLISH ABSTRACT: The measurements for the study of heavy-quark production in proton-proton (pp) collisions with ALICE at Large Hadron Collider (LHC) energies are described. Heavy-quarks (charm and beauty) are produced ... -
Modelling assemblage organisation of African Odonata
(Stellenbosch : Stellenbosch University, 2020-12)ENGLISH ABSTRACT: Climate change is expected to cause large range shifts of species assemblages, especially for climate-sensitive taxa, such as dragonflies and damselflies (Insecta: Odonata). I investigated odonate species ... -
Evidence estimation using stochastic likelihood approximations
(Stellenbosch : Stellenbosch University., 2020-04)ENGLISH ABSTRACT: We consider the problem of estimating evidence for parametric Bayesian models in the large data regime. Many existing evidence estimation algorithms scale poorly due to their need to repeatedly calculate ... -
The analysis of multi-clustering in heavy nuclei
(Stellenbosch : Stellenbosch University., 2020-04)ENGLISH ABSTRACT: The binary cluster model is the simplest mathematical model which is used to describe a system of strongly interacting, and highly correlated nuclear matter. This study will serve as a means to better ...
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