Browsing Theses  Physics by Title
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Ab Initio Anode Materials Discovery for Li and NaIon Batteries
(20180101)This thesis uses first principles techniques, mainly the ab initio random structure searching method (AIRSS), to study anode materials for lithium and sodium ion batteries (LIBs and NIBs, respectively). Initial work ... 
Acoustoelectric charge transport in quasionedimensional systems
(Department of Physics, University of Cambridge, 20000509)The study of electron transport in mesoscopic systems has recently turned to the observation of time dependent single electron e ects, where the electron transport is frequency locked to an external potential. Such devices ... 
An ultraviolet fibrecavity for strong ionphoton interaction
(20170922)We investigate the coupling of a single trapped ion to a miniature optical cavity operating in the ultraviolet. Our cavity provides a source of single photons at a high rate into a single spatial mode. Using our apparatus, ... 
Application of quantum Monte Carlo methods to excitonic and electronic systems
(20110712)The work in this thesis is concerned with the application and development of quantum Monte Carlo (QMC) methods. We begin by proposing a technique to maximise the efficiency of the extrapolation of DMC results to zero ... 
Application of quantum Monte Carlo methods to homogeneous electron and electronhole systems
The properties of the macroscopic world around us, and of which we are a part, are largely determined by the low energy, collective behaviour of many interacting particles, including the nuclei and, especially, the electrons ... 
Applications of spectral management in optoelectronic devices
(20170411)The application and efficiency of optoelectronic devices depends on the ability to control the absorption and emission processes of photons in semiconductors. This thesis looks at three different applications of spectral ... 
Approximate inference in graphical models
(20110208)Probability theory provides a mathematically rigorous yet conceptually flexible calculus of uncertainty, allowing the construction of complex hierarchical models for realworld inference tasks. Unfortunately, exact inference ... 
Aspects of transport in strongly correlated systems with gravity duals
(The Cavendish Laboratory, Department of Physics, University of Cambridge, 20170110)In this thesis we consider various applications the gauge/gravity duality to study transport in strongly coupled systems. The main content is organized in three parts. In the first part we investigate the interrelation ... 
Astronomical Interferometry at Submillimetre Wavelengths
(19941018)This thesis describes my work on the project to connect the James Clerk Maxwell Telescope (JCMT) and the Caltech Submillimeter Observatory (CSO) to form the world's first astronomical interferometer operating at submillimetre ... 
Bayesian methods for gravitational waves and neural networks
(20121009)Einstein’s general theory of relativity has withstood 100 years of testing and will soon be facing one of its toughest challenges. In a few years we expect to be entering the era of the first direct observations of ... 
Blast Propagation and Damage in Urban Topographies
(20180721)For many years, terrorism has threatened life, property and business. Targets are largely in urban areas where there is a greater density of life and economic value. Governments, insurers and engineers have sought to ... 
Blind and pointed SunyaevZel'dovich observations with the Arcminute Microkelvin Imager
(20111108)In this thesis I discuss my work on the Arcminute Microkelvin Imager (AMI). I focus on the detection of SunyaevZel’dovich (SZ) signatures at 1418GHz. Once the background science and operation of the instrument are ... 
Borate polyanionbased systems as Li and Mgion cathode materials
(20170601)The aim of this thesis is to investigate pyroborates, M2B2O5, and orthoborates, M3(BO3)2, where M = Mg, Mn, Co, Ni, as high capacity and high voltage Li and Mgion cathode materials. We explore the layered orthoborates ... 
Calorimetry at a Future Linear Collider
(20170101)This thesis describes the optimisation of the calorimeter design for collider experiments at the future Compact LInear Collider (CLIC) and the International Linear Collider (ILC). The detector design of these experiments ... 
The capillary interaction between objects at liquid interfaces
(20140107)This thesis reports numerical and analytical results on the floatation and capillary interaction of granular–sized objects at liquid–fluid interfaces. Such objects create deformations at the liquid surfaces which result ... 
Cell compliance: cytoskeletal origin and importance for cellular function.
(20110712)Mechanical properties of cells, mainly defined by their cytoskeleton, are closely related to cell function and can be measured with a dualbeam laser trap (optical stretcher). Functional changes, which go hand in hand with ... 
Characterisation of the structure and function of the Salmonella flagellar export gate protein, FlhB.
(20171004)Flagella, the helical propellers that extend from the bacterial cell surface, illustrate how complex nanomachines assemble outside the cell. The sequential construction of the flagellar rod, hook, and filament requires ... 
Charge Carrier Dynamics of Lead Halide Perovskites Probed with Ultrafast Spectroscopy
(20180519)In this thesis, we investigate the nature of charge carrier generation, relaxation and recombination in a range of lead halide perovskites. We focus on understanding whether the photophysical behaviour of these perovskite ... 
Charge Carrier Relaxation in Halide Perovskite Semiconductors for Optoelectronic Applications
(20180519)Lead halide perovskites have shown remarkable device performance in both solar cells and LEDs. Whilst the research efforts so far have been mainly focussed on device optimisation, little is known about the photophysical ... 
Charge dynamics in superconducting double dots
(20171031)The work presented in this thesis investigates transitions between quantum states in superconducting double dots (SDDs), a nanoscale device consisting of two aluminium superconducting islands coupled together by a Josephson ...