Otago University Research Archive
Browsing Physics by Date Published
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Browsing Physics by Date Published
Now showing items 1-20 of 37
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(Thesis, Doctor of Philosophy, 2013)Detecting the motion of an object involves the measurement of its position or velocity. In this thesis, we consider optical detection of motion for two different cases: the monitoring of particle displacement in optical ... -
(Thesis, Doctor of Philosophy, 2013)We develop and apply meanfield methods to two systems of significant interest in cold atom physics. The first system, and the main subject of this thesis, is a gas of polarized dipoles, in which the particles have a long ... -
(Thesis, Master of Science, 2013)Malaysia is a recently emerging economy with a mission of becoming a progressive and high-income nation, vision 2020. Over the past three decades, Malaysia has experienced rapid economic growth, accompanied by rapid ... -
(Thesis, Master of Science, 2013)We apply the Hartree-Fock-Bogoliubov-Popov (HFBP) method to two problems. The first is the phenomenon of Anderson localisation of a BEC in a two-dimensional bichromatic lattice. The second is the case of a harmonically ... -
(Thesis, Doctor of Philosophy, 2012)Convection due to the Rayleigh and Marangoni effects is known to enhance heat and/or mass transfer between two phases by as much as an order of magnitude in industrially important processes. In gas-liquid solute transfer ...
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(Thesis, Master of Science, 2012)This thesis describes a demonstration field programmable gate array (FPGA) based radio intended for high frequency applications. This prototype uses a Xilinx Spartan-3 FPGA to provide many signal processing functions ... -
(Thesis, Doctor of Philosophy, 2012)The major focus of this thesis is the dynamic effects of Feshbach resonances on Bragg scattering from Bose–Einstein condensates. This work is motivated by the JILA experiment of Papp et al. [Phys. Rev. Lett. 101 (2008)], ... -
(Thesis, Doctor of Philosophy, 2012)In this thesis we study: the dynamics leading to a near-deterministic preparation of single atoms in a microscopic optical dipole trap; the non destructive imaging and counting of trapped atoms; and a system for sorting ...
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World residential sector energy consumption: can implementing energy efficient designs save energy? (Thesis, Master of Science, 2012)This thesis has investigated if building energy efficient dwellings in the residential sector will be sufficient to allow an absolute reduction in the world residential sector energy consumption in the future. A simulation ... -
(Thesis, Doctor of Philosophy, 2012)Winter sea ice growth determines not only the ice thickness, but also important properties such as salinity, and changes in structure such as platelet ice growth. However, there are few direct measurements of ice growth ...
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(Thesis, Master of Science, 2012)In this thesis we develop a direct simulation Monte Carlo (DSMC) method for simulating highly nonequilibrium dynamics of nondegenerate ultra cold gases. We show that our method can simulate the high-energy collision of two ... -
(Thesis, Master of Science, 2012)The discovery that functions as simple as a quadratic curve could produce a chaotic and ergodic sequence of iterates as an iterative map has inspired many studies and surveys, on the behaviour of iterative functions and ... -
(Thesis, Doctor of Philosophy, 2012)In this thesis we investigate how supercooling in the ocean near an ice shelf affects the mass balance, crystal structure, and composition of sea ice. Ice shelves around Antarctica can cause supercooled water to appear ...
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(Thesis, Master of Science, 2012)Recent experiments at the University of Arizona have demonstrated superb control and imaging of flattened superfluids revealing a rich landscape of vortex dynamics. Vortex dipoles have been created and their dynamics ... -
(Thesis, Doctor of Philosophy, 2012)This thesis describes the construction of a dual species setup using fermionic 40K and bosonic 87Rb with the goal of cooling to ultracold temperatures and quantum degeneracy, and also perfoming precision collision experiments ... -
(Thesis, Master of Science, 2012)Many recent studies have identified relativistic electrons interacting with electro- magnetic ion cyclotron (EMIC) waves and being precipitated out of the radiation belts into the Earth’s atmosphere. These studies have ...
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(Thesis, Doctor of Philosophy, 2011)The use of microalgae biomass for the production of biodiesel has been increasingly investigated mainly because arable land is not required for cultivating this biofuel feedstock. However the large scale production of ...
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(Thesis, Doctor of Philosophy, 2011)Drying is one of the most energy intensive industrial operations, and it is well established that heat pump driers (HPDs), by recycling waste heat, may provide significantly higher drying energy efficiencies and lower net ... -
(Thesis, Doctor of Philosophy, 2011)In this thesis, we study an energetic electron atmospheric precipitation event that occurred on 17–19 January 2005, by quantifying the energy distribution, geographic extent and net flux of the precipitating electrons. The ...
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(Thesis, Doctor of Philosophy, 2011)Rare-earth-ion doped crystals are an interesting system for quantum computing investigations due to their long optical and hyperfine coherence times. In particular, the ground-state coherence times can be longer than one ...
Now showing items 1-20 of 37