Browsing Physics and Astronomy by Issue Date
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The electrostatic potential in a finite ionic crystal
(University of Waterloo, 19721101)This thesis is written in two parts. In Part One, we develop a new method for evaluating three dimensional lattice summations and apply it to the evaluation of the electrostatic potential of a finite ionic crystal. We then ... 
A Quasilocal Hamiltonian for Gravity with Classical and Quantum Applications
(University of Waterloo, 2000)I modify the quasilocal energy formalism of Brown and York into a purely Hamiltonian form. As part of the reformulation, I remove their restriction that the time evolution of the boundary of the spacetime be orthogonal ... 
Modelling Quantum Well Lasers
(University of Waterloo, 2002)In this thesis, two methods to model quantum well lasers will be examined. The first model is based on wellknown techniques to determine some of the spectral and dynamical properties of the laser. For the spectral ... 
HIGH RESOLUTION MICROWAVE SPECTROSCOPY OF ULTRA COLD RYDBERG ATOMS AS A PROBE OF ELECTRIC AND MAGNETIC FIELDS
(University of Waterloo, 2003)In highly excited Rydberg atoms, the excited electron is in a large, loosely bound orbit. Hence, in contrast with the ground states, the Rydberg states are very sensitive to external electric field and can be ionized in ... 
Characterisation and Optimization of Ultrashort Laser Pulses
(University of Waterloo, 2003)The ultrafast optical regime is defined, as it applies to laser pulses, along with a brief introduction to pulse generation and characterisation technologies. A more extensive description of our particular amplified ... 
Physics in HigherDimensional Manifolds
(University of Waterloo, 2003)In this thesis, we study various aspects of physics in higherdimensional manifolds involving a single extra dimension. After giving some historical perspective on the motivation for studying higherdimensional theories ... 
FieldFree Alignment and Strong Field Control of Molecular Rotors
(University of Waterloo, 2004)Methods of controlling molecular rotations using linearly polarized femtosecond and picosecond pulses are considered and analyzed theoretically. These laser pulses, typically in the infrared, are highly nonresonant ... 
Electrostatics of the Binding and Bending of Lipid Bilayers: ChargeCorrelation Forces and Preferred Curvatures
(University of Waterloo, 2004)Lipid bilayers are key components of biomembranes; they are selfassembled twodimensional structures, primarily serving as barriers to the leakage of cell's contents. Lipid bilayers are typically charged in aqueous ... 
Elastic moduli of multiblock copolymers in the lamellar phase
(AIP Publishing, 20040222)We study the linear elastic response of multiblock copolymer melts in the lamellar phase, where the molecules are composed of tethered symmetric AB diblock copolymers. We use a selfconsistent field theory method, and ... 
Spectroscopy of selected metalcontaining diatomic molecules
(University of Waterloo, 2005)Fourier transform infrared emission spectra of MnH and MnD were observed in the ground <em>X</em><sup>7</sup>σ<sup>+</sup> electronic state. The vibrationrotation bands from <em>v</em> = 1 to 0 to <em>v</em> = ... 
Monte Carlo Study of the Magnetic Flux Lattice Fluctuations in High<em>T<sub>c</sub></em> Superconductors
(University of Waterloo, 2005)By allowing to measure the magnetic field distribution inside a material, muon spin rotation experiments have the potential to provide valuable information about microscopic properties of hightemperature superconductors. ... 
Nematic ordering of wormlike polymers
(University of Waterloo, 2005)In this thesis, based on the Onsager excluded volume interaction model, two nematic ordering problems of wormlike (semiflexible) polymer are studied: one is to investigate the isotropicnematic interface of polymers for ... 
TaubNUT Spacetime in the (A)dS/CFT and MTheory
(University of Waterloo, 2005)In the following thesis, I will conduct a thermodynamic analysis of the TaubNUT spacetime in various dimensions, as well as show uses for TaubNUT and other HyperKahler spacetimes. <br /><br /> Thermodynamic analysis ... 
Fast Stochastic Global Optimization Methods and Their Applications to Cluster Crystallization and Protein Folding
(University of Waterloo, 2005)Two global optimization methods are proposed in this thesis. They are the multicanonical basin hopping (MUBH) method and the basin paving (BP) method. <br /><br /> The MUBH method combines the basin hopping (BH) ... 
Topological methods in quantum gravity
(University of Waterloo, 2005)The main technical problem with background independent approaches to quantum gravity is inapplicability of standard quantum field theory methods. New methods are needed which would be adapted to the basic principles ... 
Minimal model for the secondary structures and conformational conversions in proteins
(University of Waterloo, 2005)Better understanding of protein folding process can provide physical insights on the function of proteins and makes it possible to benefit from genetic information accumulated so far. Protein folding process normally ... 
The Development of an Average, Anatomically Based, Young Adult, GRIN Eye Model
(University of Waterloo, 2005)The purpose of this thesis is to describe the development of an anatomically based, young adult eye model, which includes a crystalline lens with a gradient refractive index (GRIN). This model will then be used to ... 
Observation of Resonant Electric DipoleDipole Interactions Between Cold Rydberg Atoms Using Microwave Spectroscopy
(University of Waterloo, 2006)This thesis reports the first observation of the resonant electric dipoledipole interaction between cold Rydberg atoms using microwave spectroscopy, the observation of the magnetic field suppression of resonant interactions, ... 
Instabilities in HigherDimensional Theories of Gravity
(University of Waterloo, 2006)A number of models of nature incorporate dimensions beyond our observed four. In this thesis we examine some examples and consequences of classical instabilities that emerge in the higherdimensional theories of gravity ... 
Higher dimensional TaubNUT spaces and applications
(University of Waterloo, 2006)In the first part of this thesis we discuss classes of new exact NUTcharged solutions in four dimensions and higher, while in the remainder of the thesis we make a study of their properties and their possible applications. ...