Physics thesis and dissertation collection
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Recent Submissions
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Neutron-diffraction of hydrogen-rich molecules under high pressure
(The University of Edinburgh, 2022-09-22)A proton and an electron form the lightest element of the periodic table: Hydrogen. Despite the simplicity of this element and an ongoing research interest, surprisingly little is known about its solid phases and ... -
Enzymology in perchlorate rich, multi-extreme environments
(The University of Edinburgh, 2022-09-02)The potential for life on Mars is one of the most interesting and yet elusive questions in modern science. The surface of Mars holds little prospect for biology due to the large daily temperature ranges, ionizing ... -
Multi–scale study of chromatin organisation and function: DNA topology, epigenetics and chromatin compaction
(The University of Edinburgh, 2022-08-19)Understanding chromatin organisation at different length scales is still one of the most puzzling challenges in biophysics. Nowadays, it is clear that DNA or chromatin conformational changes can profoundly affect gene ... -
Structural investigations of elemental metals at multi-megabar pressures using toroidal diamond anvil cells
(The University of Edinburgh, 2022-06-30)Research at high pressures has revealed that the elemental metals, most of which have simple crystal structures at ambient conditions such as face-centred cubic, body-centred cubic, or hexagonal close-packed, transition ... -
Microbial responses to multiple extreme environments
(The University of Edinburgh, 2022-06-30)Microorganisms are the most ancient, abundant and diverse form of life on Earth. Their ability to tolerate a variety of stresses has enabled microbial colonisation of extreme environments, including hot springs, soda lakes ... -
Detection and characterisation of young planetary-mass objects: novel techniques and optimised survey strategies
(The University of Edinburgh, 2022-06-29)Young, low-mass brown dwarfs can be similar in size and composition to young, giant exoplanets. Many exist without host stars and are uncontaminated by starlight, making them useful analogues for studying planets in solar ... -
Novel materials under extreme conditions
(The University of Edinburgh, 2022-06-24)Materials under extreme conditions often exhibit novel behaviours that differ widely from those observed at room pressure and temperature. These novel behaviours include metal to insulator transitions, insulator to metal ... -
Calculation of the K→πl+l- rare kaon decay amplitude using lattice quantum chromodynamics
(The University of Edinburgh, 2022-06-23)The K→πl+l- decay is a flavor changing neutral current process which is forbidden at tree level in the Standard Model and instead occurs as a second-order electroweak process. This suppression causes the decay to be sensitive ... -
Elements of life under pressure: chemistry and crystal structures of H-C-N-O compounds in planetary interiors
(The University of Edinburgh, 2022-06-16)The interiors of icy planets such as Uranus, Neptune and several exoplanets contain mixtures of methane, ammonia and water. It is unclear how these mixtures will behave under the high pressures found near the core-mantle ... -
Effect of spatial dimensionality on the chaotic properties of turbulent flow
(The University of Edinburgh, 2022-06-10)The phenomenon of fluid turbulence is found almost universally in the world around us, however, there is still much that is not understood about the underlying physics. What is known about turbulent fluid flows is that ... -
Applications of radioisotopes to problems of deformation of solids
(The University of Edinburgh, 1957)The conditions most suitable for the welding of copper and silver specimens have been indicated; no distinction has been made between the recrystallisation i characteristics of copper and silver. This may not have been ... -
Some aspects of magnetohydrodynamics stability
(The University of Edinburgh, 1961)The only [method] which we shall use in this thesis is to treat the field quantities as continuous functions, so that we can use the usual field equations of hydrodynamics and electromagnetism. Conditions for this assumption ... -
Effects of macroscopic variables on turbulent evolution
(The University of Edinburgh, 2019-11-26)[No Deposit Agreement] -
Study of bacterial growth and adhesion in environments subjected to flow or surface vibration
(The University of Edinburgh, 2022-05-03)This thesis presents investigations into the adhesion of E.coli cells and the growth of such cells into colonies on substrates that are subject to external mechanical perturbations. The first perturbation we introduce ... -
Cosmology with the Kilo-degree lensing survey
(The University of Edinburgh, 2019-07-01)[No Deposit Agreement] -
Studies of b Hadron decays to Charmonium, the LHCb upgrade and operation
(The University of Edinburgh, 2022-04-11)Precise measurements of CP violation provide stringent tests of the Standard Model towards the search for signs of new physics. Using LHC proton-proton collision data, collected by the LHCb detector during 2015 and 2016 ... -
Studies of phase and strength in high pressure vanadium
(The University of Edinburgh, 2022-04-04)High temperature and pressure states of matter are ubiquitous in nature. It is therefore of the upmost importance that they are understood. Extreme pressures can be obtained using both static and dynamic compression. ... -
Simulating the X-ray emission of hot gas in groups and clusters
(The University of Edinburgh, 2022-03-31)As some of the largest gravitationally bound objects in the Universe, galaxy groups and clusters provide a unique laboratory for testing models of cosmology and galaxy evolution. While many of the basic properties of ... -
Modelling extraterrestrial habitability, biomass and biosignatures through the bioenergetic lens
(The University of Edinburgh, 2022-03-31)In order to survive, evolve and thrive, life requires a biologically useful supply of energy and nutrients. While there is evidence for both throughout the solar system and beyond, quantifying the energetic threshold at ...
