Browsing Theses/Dissertations - Physics by Issue Date
Now showing items 21-40 of 57
-
Nanocluster defects and their properties on TiO2(110) and (001) surfaces.
(, 2012-11-29)TiO2(110) and (001) have been investigated by low energy electron diffraction (LEED) and scanning tunneling microscopy (STM). A nearly bulk-like (1 × 1) TiO2(110) was produced after cycles of Ar+ sputtering and surface ... -
Fundamental particle and wave dynamics in dusty plasmas.
(, 2012-11-29)Dusty plasma is a low-temperature plasma containing dust particles varying in size from nanometers to micrometers. Due to plasma fluxes to its surface, a dust particle will charge negatively or positively depending on the ... -
Studies on the missing energy measurement and supersymmetry search in 7 TeV proton-proton collisions.
(, 2012-11-29)The main theme of the research presented in this thesis is the search for Supersymmetry, one of the most likely and well-motivated extensions of the standard model of particle physics, in 7 TeV proton-proton collisions ... -
Measurement of the single top quark cross section in the lepton plus jets final state in proton-antiproton collisions at a center of mass energy of 1.96 TeV using the CDF II detector.
(, 2013-05-15)We present a measurement of the single top quark cross section in the lepton plus jets final state using an integrated luminosity corresponding to 7.5/fb of collision data collected by the Collider Detector at Fermilab. ... -
Hořava-Lifshitz theory of gravity and its applications to cosmology.
(, 2013-09-16)In this dissertation, I studied Hořava-Lifshitz gravity and its applications to inflationary cosmology. After introducing the original proposal with the projectability and detailed balance conditions, I discussed its ... -
Reflections on general relativity from perspectives of black hole physics and Hořava-Lifshitz gravity.
(2015-07-30)The physical logic of the Theory of General Relativity is summarized employing differential geometry of surfaces in three dimensional Euclidean space as a visual assistance for understanding. The applications of general ... -
LEED and STM studies of rutile (1x1) and (1x2) TiO2(110).
(2016-04-20)The structures and properties of rutile (1x1) and (1x2) TiO2(110) surfaces are studied using low energy electron diffraction (LEED) and scanning tunneling microscopy (STM). For (1x1) TiO2, LEED analysis shows common ... -
Holography and black holes in gravitational theories without Lorentz symmetry.
(2017-03-09)Recently, relativistic gauge/gravity duality, the best understood example of which is AdS/CFT correspondence, has been extended to its nonrelativistic version. In this dissertation, we study the holographic duality between ... -
Quantum biophotonics : applications to plant stress and bacteria.
(2017-03-22)Drought stress disrupts the balance of macro- and micronutrients and affects the yield of agriculturally and economically significant plants. Rapid detection of stress-induced changes of relative content of elements such ... -
Probing interactions among molecules, substrate, and tip using tip-enhanced Raman spectroscopy.
(2017-07-31)Tip-Enhanced Raman Spectroscopy (TERS) has shown that spatial resolution <1 nm is possible, but is technically challenging and difficult even in Ultra-High Vacuum at low temperatures with plasmonic substrates. Here we ... -
Encrypting the universe.
(2017-08-02)Layer one N = 4 SUSY Weakly Coupled Free Fermionic Heterotic String (WCFFHS) Models that include string-scale massive gauge sectors are statistically investigated for even orders through 12 for uniqueness and gauge content. ... -
Imaging surface reactions at molecular level on TiO₂ surfaces.
(2017-11-01)Understanding the structure and properties of TiO₂ surfaces is critical to achieve a better understanding of heterogeneous catalytic reactions on TiO₂. In this thesis, rutile TiO₂ (110) and anatase TiO₂ (001) surfaces have ... -
Two-dimensional Hořava-Lifshitz theory of gravity.
(2017-11-03)In this dissertation, two-dimensional Hařava theory of gravity has been studied on the classical and quantum mechanical levels. The classical solutions of the projectable and nonprojectable Hořava gravity have been found ... -
Total electron scattering cross sections of molecules containing H, B, C, N, O, F, Si, P, S, and Cl in the energy range 0.1- 6.0 keV.
(2017-11-06)The effective atomic total electron scattering cross sections (EATCS) of atomic H, B, C, N, O, F, Si, P, S, and Cl are proposed for 0.1-6.0 keV energies using the existing experimental total electron scattering cross ... -
Spectral approach to transport problems in two-dimensional disordered lattices : physical interpretation and applications.
(2017-11-17)This paper introduces the spectral approach to transport problems in infinite disordered systems characterized by an Anderson-type Hamiltonian. The spectral approach determines (with probability 1) the existence of extended ... -
IR-improved DGLAP-CS parton shower effects in W + jets at √ s = 7, 8, and 13 TeV.
(2017-11-27)The invention and development of collider physics in the twentieth century provides us with opportunities to determine which particles exist in nature, their properties, and the ways they interact with each other. The ... -
Environmental applications of plasma physics : aerosolized nanoparticle decontamination using an inductively heated plasma device.
(2018-04-17)Materials with sizes on the nanometer scale are highly desired for their unique size-dependent properties that prove beneficial in industrial and consumer processes. However, the increased use of nanomaterials could lead ... -
Thomas Fermi model for mesons and new noise subtraction techniques in lattice QCD.
(2018-12-03)Lattice QCD calculations of quark loop operators are extremely time-consuming to evaluate. To calculate these diagrams we use stochastic noise methods, which employ a randomly generated set of noise vectors to project out ... -
Observational constraints and exact plane wave and spherical solutions in Einstein-Aether Theory.
(2019-07-11)There are theoretical reasons to suspect that Lorentz-invariance, a cornerstone of modern physics, may be violated at very high energy levels. To study the effects of Lorentz-invariance in the classical regime, we consider ... -
Gravitational radiation and black hole formation from gravitational collapse in theories of gravity with broken Lorentz symmetry.
(2019-07-12)Quantum gravity is expected to contain Lorentz symmetry only as an emergent low energy symmetry with the scale at which it is broken presently inaccessible to current experiments. My research, is centered around understanding ...