Browsing Physics by Title
Now showing items 79-98 of 291
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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. ... -
Extended Search for Axion Dark Matter with ADMX
The axion is a hypothetical elementary particle that came out of a solution to the Strong-CP problem in Quantum Chromodynamics (QCD). The properties of the axion also make it a highly compelling candidate for dark matter. ... -
FASER tracker performance and electron energy resolution in the FASERv pilot detector
In collider experiments, very light particles are produced in the far-forward direction with small angle relative to the beam axis and can travel a long distance before decaying. The ForwArd Search ExpeRiment (FASER) is ... -
Finite-beta simulations of HIT-SI and HIT-SI3 using the NIMROD code
The Helicity Injected Torus with Steady Inductive helicity injection (HIT-SI) and HIT-SI3 experiments are a pair of devices that form and sustain spheromak plasmas through the use of Steady Inductive Helicity Injection ... -
Fission dynamics in a microscopic theory
This thesis is concerned with the application of the time-dependent density functional theory (TDDFT) to investigate the fission dynamics of atomic nucleus, which is still one of the most complicated problem in nuclear ... -
Fission within the Time Dependent Superfluid Local Density Approximation
This thesis investigates fission within the framework of the time- dependent superfluid local density approximation (TDSLDA), the most complete microscopic theory to describe low energy nuclear phenomena currently available. ... -
Fixing the Standard Model: From Dark Matter to the Baryon Asymmetry of the Universe
Since its foundation in the 20th century, the Standard Model has been immensely powerful in explaining many particle physics phenomena. With the discovery of the Higgs boson at the LHC, the Standard Model seems to be ... -
Formal Developments for Lattice QCD with Applications to Hadronic Systems
In order to make reliable predictions with controlled uncertainties for a wide range of nuclear phenomena, a theoretical bottom-up approach, by which hadrons emerge from the underlying theory of strong interactions, quantum ... -
From Quantum Gravity to Combinatorial Hives: Addressing Longstanding Puzzles with Novel Approaches
A thesis in two parts, this manuscript concerns the applications of contemporary techniques in optimization, network theory, combinatorial topology, and other branches of discrete mathematics to longstanding problems in ... -
Functionality, Robustness and Control of Nonlinear Network Dynamics: Modeling and Understanding the C. elegans Connectome
Networks of many nonlinearly-coupled dynamical components are ubiquitous in the physical sciences, but often difficult to characterize. However, their dynamics are often low-dimensional, being dominated by a few functional, ... -
Gas Adsorption on Suspended Carbon Nanotubes and Graphene
Rare gas adsorption was studied on suspended individual single walled carbon nanotubes and graphene. The devices were fabricated as field effect transistors. Adsorption on graphene was studied through two-terminal ...