Browsing Physics by Title
Now showing items 69-88 of 291
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Electron Detection Systems for KATRIN Detector and Spectrometer Section
A time-of-flight mode is proposed for the upcoming KATRIN experiment beta-decay spectrum measurement, and methods toward the necessary passive detection of a single electron through a large aperture are explored. A sub-fA ... -
Electronic and transport properties in carbon nanostructures
(University of Washington, 2011-06)This dissertation studies the electronic and transport properties in one and two dimensional carbon systems, including carbon nanotubes, carbon chains and graphene. The focus is on the e ects of e-e interaction on these ... -
Electronic Transport of a 2D Quantum Material WTe2
Quantum materials, such as superconductors, topological insulators, magnets, and Weyl semimetals, are materials whose properties cannot be explained without quantum mechanics. Strong correlation and band topology play very ... -
Electronic Transport Phenomena in Low Dimensional and Topological Materials
This dissertation focuses on electron transport properties in topologically nontrivial conduc- tors (chiral p-wave superconductor Sr2RuO4 and stackings of van der Waals solids(vdWs)) and topological material, Weyl semimetals. ... -
Emergent phenomena and device applications in magnetic van der Waals heterostructures
Van der Waals (vdW) heterostructures built by the vertical stacking of various 2D materials provide an ideal platform for the rational design of emergent phenomena and device applications. The recent discovery of atomically ... -
Emergent phenomena in two-dimensional magnetic crystals
Two-dimensional (2D) van der Waals (vdW) crystals and their heterostructures offer a simple, yet powerful platform for discovering emergent phenomena and implementing device structures in the atomically thin limit. Fervent ... -
Enabling the Next Generation of 21 cm Cosmology: Precision Analysis Techniques for Radio Cosmology Observations
Detecting the EoR will require extremely precise measurements. The signal is very faint and is obscured by intervening emission, or foregrounds, that are 4-5 orders of magnitude brighter. Thus far, analyses have not achieved ... -
Engineering Interfacial Effects and Layered Behavior in 2D Materials
The rise of two-dimensional (2D) materials over the last one-and-a-half decades can be attributed to two separate reasons. The first is the discovery of new materials with unique properties that derive partially, if not ... -
Enhancing EoR limits through improved instrumental calibration of the MWA
Epoch of Reionization observations have the potential to be transformative in the field of cosmology, but this is impossible without unprecedented levels of precision in calibration. We enhance EoR upper limits from the ... -
Entanglement between Quarks in Hadrons
Entanglement between valence quarks and the sea in hadrons is shown to be deeply connectedto important features of QCD, namely chiral symmetry breaking and confinement. The sea degrees of freedom can be traced over to give ... -
An equilibrium model for helicity injector operation
(1997)The Helicity Injected Tokamak (HIT) experiment is a low aspect ratio (A = 1.5) tokamak formed and sustained by helicity injection. A critical issue facing its operation is the efficiency of the helicity injector. In order ... -
Equivalence Principle Tests and Direct Searches for Ultra-Light Dark Matter with Fused-Silica Torsion Fibers
Torsion balances are precision instruments for testing gravity and other experiments. However, they are limited by thermal noise and angular readout noise. This dissertation presents research and development in producing ... -
Experimental study of the atmospheric [Nu][mu]/[Nu]e ratio in the multi-GeV energy range
(1998)The atmospheric neutrino flux ratio Nu$\sb-$mu/Nu$\sb-$e and its zenith angle dependence have been measured in the multi-GeV energy range using an exposure of 33.0 kiloton-years of the Super-Kamiokande detector. By comparing ... -
Experiments in the Ultracold Lithium - Ytterbium System
(2014-02-24)I detail the construction of an experimental apparatus created for performing ultracold atomic experiments with fermionic lithium-6 (Li) and several isotopes of ytterbium (Yb), and several of the first experiments performed ... -
Experiments on a strongly correlated material: photoresponse, phase diagram and hydrogen doping of VO2
(2014-02-24)The metal-insulator transition(MIT) in vanadium dioxide(VO2) has attracted waves of attention after its rst observation by Morin in 1959. There are several reasons for the interest in this material. First, its metal-insulator ... -
Experiments with remote entanglement using single barium ions
(2010)Barium ions are trapped and Doppler cooled in a linear Paul trap with the goal of demonstrating state initialization, single-qubit operations and detection. Rabi rotations are demonstrated on the 6S1/2 ↔ 6P3/2 transition ... -
Experiments with Trapped Ions: Entanglement, Novel Traps, and Quantum Jumps
Quantum computing promises to revolutionize modern computation. The race to establish a reliable quantum computing system has spurred research over the globe with the goal of establishing a reliable qubit system. One of ... -
Exploring Neural Correlates of Flexible Cognition During a Complex Decision Making Task
Efficiently solving complex decision making tasks typically arises from the use of schemas, abstract structures that organize experience and guide integration of novel information. There is a wealth of knowledge related ... -
Exploring the phases of 2+1 dimensional gauge theories through bosonization, holography & more
The dynamics of 2+1 dimensional gauge theories offer insight into the exciting interplay between topology and physics. With the addition of Chern-Simons terms to the action, one can engineer conformal field theories which ... -
Extended Magnetohydrodynamic Simulations of the Helicity Injected Torus (HIT-SI) Spheromak Experiment with the NIMROD Code
(2013-11-14)A comparative study of 3-D pressureless resistive (single-fluid) magnetohydrodynamic (rMHD) and 3-D pressureless two-fluid magnetohydrodynamic (2fl-MHD) models of the Helicity Injected Torus experiment (HIT-SI) is presented. ...