• Exceptional Points and their Consequences in Open, Minimal Quantum Systems 

  Muldoon, Jacob E. (2022-08)

  Open quantum systems have become a rapidly developing sector for research. Such systems present novel physical phenomena, such as topological chirality, enhanced sensitivity, and unidirectional invisibility resulting from ...
• Beyond the Exceptional Point: Exploring the Features of Non-Hermitian PT Symmetric Systems 

  Agarwal, Kaustubh Shrikant (2022-08)

  Over the past two decades, open systems that are described by a non-Hermitian Hamiltonian have become a subject of intense research. These systems encompass classical wave systems with balanced gain and loss, semi-classical ...
• Investigation of PT Symmetry Breaking and Exceptional Points in Delay-coupled Semiconductor Lasers 

  Wilkey, Andrew (2021-08)

  This research investigates characteristics of PT (parity-time) symmetry breaking in a system of two optically-coupled, time-delayed semiconductor lasers. A theoretical rate equation model for the lasers' electric fields ...
• Injection Current Modulated Parity-Time Symmetry in Coupled Semiconductor Lasers 

  Thomas, Luke (2021-08)

  This research investigates the characteristics of Parity Time symmetry breaking in two optically coupled, time delayed semiconductor lasers. A theoretical model is used to describe the controllable parameters in the ...
• Voltage Controlled Non-Volatile Spin State and Conductance Switching of a Molecular Thin Film Heterostructure 

  Mosey, Aaron (2021-05)

  Thermal constraints and the quantum limit will soon put a boundary on the scale of new micro and nano magnetoelectronic devices. This necessitates a push into the limits of harnessable natural phenomena to facilitate a ...
• Developing an approach to improve beta-phase properties in ferroelectric pvd-hfp thin films 

  Dale, Ashley S. (2020-05)

  Improved fabrication of poly(vinylindenefluoride)-hexafluoropropylene (PVDF-HFP) thin films is of particular interest due to the high electric coercivity found in the beta-phase structure of the thin film. We show that it ...
• Small Angle Scattering Of Large Protein Units Under Osmotic Stress 

  Palacio, Luis A. (2020-05)

  Large protein molecules are abundant in biological cells but are very difficult to study in physiological conditions due to molecular disorder. For large proteins, most structural information is obtained in crystalline ...
• Parity-Time Symmetry in Non-Hermitian Quantum Walks 

  Assogba Onanga, Franck (2019-12)

  Over the last two decades a new theory has been developed and intensively investigated in quantum physics. The theory stipulates that a non-Hermitian Hamiltonian can also represents a physical system as long as its energy ...
• Optical refrigeration on CdSe/CdS quantum dots 

  Hua, Muchuan (2019-12)

  Optical refrigeration in quantum dots was carried out in this research. Zinc-blende crystalline CdSe/CdS (core/shell structure) QDs with complete surface passivation were synthesized and been used as the cooling substance. ...
• Parametric Cooling and Itinerant Ferromagnetism in a Degenerate Fermi Gas 

  de Melo, Leonardo F. (2018-12)

  Presented in this thesis is the construction of an apparatus to produce optically trapped lithium-6 atoms in the two lowest hyperfine states, the observation of cooling the trapped atoms by parametric excitation, and a ...
• Solid-state NMR spectroscopy applied to model membranes: effects of polyunsaturated fatty acids 

  Kinnun, Jacob Jerald (2018-08-20)

  Omega-3 polyunsaturated fatty acids (n-3 PUFAs) relieve the symptoms of a wide variety of chronic inflammatory disorders. Typically, they must be obtained in the diet from sources such as fish oils. Docosahexaenoic acid ...
• Insights on PUFA-containing lipid membranes probed by MD simulations 

  Leng, Xiaoling (2017-04-14)

  The cell membrane serves as a barrier between the interior and exterior of a living cell. Its main structural component is the lipid bilayer, which is composed of various kinds of lipids that segregate into domains. These ...
• Quantum physics inspired optical effects in evanescently coupled waveguides 

  Thompson, Clinton Edward (2014)

  The tight-binding model that has been used for many years in condensed matter physics, due to its analytic and numerical tractability, has recently been used to describe light propagating through an array of evanescently ...
• An investigation of parity and time-reversal symmetry breaking in tight-binding lattices 

  Scott, Derek Douglas (2014)

  More than a decade ago, it was shown that non-Hermitian Hamiltonians with combined parity (P) and time-reversal (T ) symmetry exhibit real eigenvalues over a range of parameters. Since then, the field of PT symmetry has ...
• Biophysical studies of cholesterol in unsaturated phospholipid model membranes 

  Williams, Justin A. (2013)

  Cellular membranes contain a staggering diversity of lipids. The lipids are heterogeneously distr ibuted to create regions, or domains, whose physical properties differ from the bulk membrane and play an essential role ...
• Induced magnetoelectric coupling at a ferroelectric-ferromagnetic interface 

  Carvell, Jeffrey David (2013-11-08)

  Preparation and characterization of multiferroic materials in which ferroelectricity and ferromagnetism coexist would be a milestone for functionalized materials and devices. First, electric properties of polyvinylidene ...
• Reactive oxygen species' role in endothelial dysfunction by electron paramagnetic resonance 

  Wassall, Cynthia D. (2013-08-29)

  The endothelium is a single layer of cells lining the arteries and is involved in many physiological reactions which are responsible for vascular tone. Free radicals are important participants in these chemical reactions ...
• INVESTIGATION OF QUANTUM FLUCTUATIONS IN A NONLINEAR INTERFEROMETER WITH HARMONIC GENERATION AND COHERENT INTERACTION OF LIGHT AND CS ATOMS 

  Srinivasan, Prashant (2013-08-23)

  In the first part of this thesis, we investigate the propagation of quantum fluctuations in a nonlinear interferometer comprising under conditions of harmonic generation by computer simulations. This investigation assumes ...
• Characterization and Measurement of Hybrid Gas Journal Bearings 

  Lawrence, Tom Marquis (2012-08-28)

  This thesis concentrates on the study of hybrid gas journal bearings (bearings with externally pressurized mass addition). It differs from most work in that it goes back to “basics” to explore the hydrodynamic phenomena ...
• Near-Field Investigations of the Anisotropic Properties of Supported Lipid Bilayers 

  Johnson, Merrell A. (2012-07-24)

  The details of Polarization Modulation Near-Field Scanning Optical Microscopy (PM-NSOM) are presented. How to properly calibrate and align the system is also introduced. A measurement of Muscovite crystal is used to display ...

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