Browsing FAS Theses and Dissertations by FAS Department "Physics"
Now showing items 120 of 238

4d Spectra from BPS Quiver Dualities
(20130926)We attack the question of BPS occupancy in a wide class of 4d N = 2 quantum field theories. We first review the SeibergWitten approach to finding the low energy Wilsonian effective action actions of such theories. In ... 
A dipolar quantum gas microscope
(20190517)Quantum gas microscopy provides an exciting platform for the study of in situ atomatom interactions. Recent advances in quantum gas microscopy have allowed the probing of the BoseHubbard and FermiHubbard Hamiltonian ... 
A Fast 7Libased Quantum Simulator
(20190517)The work presented in this thesis is the design and characterization of a new apparatus for quantum simulation using bosonic Lithium in optical lattices, along with proposals for simulations of the spin1 Heisenberg model ... 
A Search for Sterile Neutrinos at the NOνA Far Detector
(20161208)NOνA is the current United States flagship longbaseline neutrino experiment designed to study the properties of neutrino oscillations. It consists of two functionally identical detectors each located 14.6 mrad off the ... 
A Thermochemical Cryogenic Buffer Gas Beam Source of ThO for Measuring the Electric Dipole Moment of the Electron
(20170504)The discovery of an electric dipole moment of the electron (eEDM) within a few orders of magnitude of the current best limit would reveal the existence of timereversal symmetry (T) violating physics beyond the Standard ... 
A Transdimensional Perspective on Dark Matter
(20180513)Robust uncertainty propagation and marginalization over nuisance parameters is the key to per form robust inference. This thesis introduces a transdimensional, hierarchical, thresholdfree, and Bayesian inference framework. ... 
Advances in Ab Initio Modeling of the ManyBody Effects of Dispersion Interactions in Functional Organic Materials
(20151204)Accurate treatment of the longrange electron correlation energy, including dispersion interactions, is essential for describing the structure, dynamics, and function of a wide variety of systems. Among the most accurate ... 
An Integrated Diamond Nanophotonics Platform for Quantum Optics
(20180511)Efficient interfaces between optical photons and quantum bits are fundamental building blocks for quantum networks and largescale quantum computers. We demonstrate an integrated platform for scalable quantum optics based ... 
An odyssey in modern quantum manybody physics
(20190503)This thesis is a collection of research work in quantum manybody physics that I have done during the past few years. The topics include: 1. a theory of anomalous magnetotransport from mass anisotropy of the fermions on a ... 
Analytical Methods in Mesoscopic Systems
(20121016)The propsect of designing technologies around the quantum behavior of mesoscopic devices is enticing. This thesis present several tools to facilitate the process of calculating and analyzing the quantum properties of such ... 
Analytical Steps Towards the Observation of HighSpin Black Holes
(20190429)Ongoing astronomical efforts extract physical properties of a black hole from electromagnetic emissions in its vicinity. In this dissertation, we analytically study such emissions from the nearhorizon region of highspin ... 
Apparatus and Methods for a New Measurement of the Electron and Positron Magnetic Moments
(20180105)This thesis presents contributions to two precision measurement experiments: electron and positron $g/2$, and ATRAP antihydrogen spectroscopy. The magnetic moment of the electron in Bohr magnetons, $g/2$, is the most ... 
Applications of Many Body Dynamics of Solid State Systems to Quantum Metrology and Computation
(20130318)This thesis describes aspects of dynamics of solid state systems which are relevant to quantum metrology and computation. It may be divided into three research directions (parts). For the first part, a new method to enhance ... 
Aspects of Symmetry in Asymptotically Flat Spacetimes
(20180511)We explore the nature and implications of a variety of asymptotic symmetry groups associated to gauge theory and quantum gravity in asymptotically flat spacetimes. We reexpress Weinberg's soft graviton theorem as a Ward ... 
Aspects of Symmetry in de Sitter Space
(20140606)We study various aspects of symmetry in fourdimensional de Sitter space (dS$_4$). 
Aspects of Symmetry in the Infrared
(20190509)This dissertation studies a class of infinitedimensional symmetries, known as asymptotic symmetries, across a variety of gauge and gravitational theories. In identifying the physical implications of these symmetries with ... 
Asymptotic Symmetries in FourDimensional Gauge and Gravity Theories
(20170511)Recent developments have uncovered a deep relationship between soft theorems in quantum field theories and asymptotic symmetries. We investigate five explicit examples wherein these connections are studied and verified. ... 
Atomic BoseHubbard Systems With SingleParticle Control
(20151214)Experiments with ultracold atoms in optical lattices provide outstanding opportunities to realize exotic quantum states due to a high degree of tunability and control. In this thesis, I present experiments that extend this ... 
BAT Slew Survey (BATSS): Slew Data Analysis for the SwiftBAT Coded Aperture Imaging Telescope
(20130318)The BAT Slew Survey (BATSS) is the first widefield survey of the hard Xray sky (15–150 keV) with a slewing coded aperture imaging telescope. Its fine time resolution, high sensitivity and large sky coverage make it ... 
Beam Characterization and Systematics of the Bicep2 and Keck Array Cosmic Microwave Background Polarization Experiments
(20141021)Inflation, which posits an exponential expansion in the early universe, is well motivated since it resolves questions that are left unexplained by standard LCDM cosmology, such as the flatness and homogeneity of the universe. ...