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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 43 for “"gauge fields"”.
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Artificial gauge fields in photonics and mechanical systems
… by neutral particles that do not couple to real gauge fields. In order to simulate interesting electromagnetic phenomena, such as the topological insulators, or the Landau levels, there is the need for the implementation of artificial gauge fields. In particular, the topological insulators are …
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Topics in multi-component ultracold gases and gauge fields
… related to multi-component ultracold gases and gauge fields. The first topic that we discuss is artificial gauge fields in ultracold gases. Recently, methods to create artificial gauge fields coupled to neutral ultracold systems using a light-induced Berry's connection have been rapidly …
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Gravitational waves and gauge fields in the early Universe
… resonant production of Abelian and non-Abelian gauge bosons. We subsequently demonstrate that gravitational wave emission constrains a similar model invoked to resolve the discrepancy in measurements of the present-day expansion rate. Finally, we study gravitational waves induced by scalar …
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Artificial gauge fields and quantum hall physics in optical lattices
The engineering of artificial gauge fields for ultracold atoms in optical lattices opens a new chapter for the quantum simulation of quantum Hall physics. Motivated by recent advances and refined techniques in controlling quantum gases in optical lattices, this thesis explores how the …
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Investigation of synthetic gauge fields in two analog simulation platforms
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms
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Interacting atoms in time-dependent potentials and artificial gauge fields
… of systems used in the simulation of artificial gauge fields via time-modulated tuning of system parameters and via the coupling of internal atomic states by Raman lasers. A second aspect will be the study of systems with synthetic dimensions and the effects of the unconventional infinite range …
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The dynamics of ultracold atoms in light-induced synthetic gauge fields
… the dynamics of ultracold atoms in synthetic gauge fields. In this work, we developed a method to optimize the evaporation of ultracold atoms to the Bose-Einstein condensate (BEC) phase. We implement a model of atomic evaporation in a trapping potential, and we find optimal parameters for the …
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Phases of bosons in optical lattices and coupled to artificial gauge fields
<p>Ultracold atoms have emerged as an indispensable setting to study quantum many-body systems. Recent experimental and theoretical work has explored the curious phases and novel properties of Bose-Einstein Condensate with optical lattices, and Bose-Einstein Condensate with light-induced artificial …
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Discrete Strain Engineering in Graphene
… continuum theory to describe the strain induced gauge fields in graphene; however, this approach is only valid for small strains (5% at most). A discrete framework is being developed in Arkansas that can more accurately calculate the deformation (electrical) and (pseudo-)magnetic gauge fields …
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Ultracold quantum scattering in the presence of synthetic spin-orbit coupling
… collision physics in the presence of synthetic gauge fields, which are generated by atom-light interaction. One category of synthetic gauge fields is the artificial spin-orbit coupling. We discuss three different aspects in scattering theory: ultracold collision, scattering resonance, and bound …
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Novel electromagnetic scattering phenomena
… scattering off real structures and off synthetic gauge fields. The source of scattering also varies from near-field to far-field excitations. First, we present a general framework for nanoscale electromagnetism with experimental verifications based on far-field plasmonic scattering. We also …
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Spin-orbit coupled Bose gases
… efforts have been made to simulate artificial gauge fields with ultracold atoms, including spin-dependent gauge fields, such as spin-orbit coupling. Motivated by this goal our lab explored several approaches to generate a one-dimensional spinorbit coupling interaction, which has a rich phase …
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Zero sound modes in the AdS/CFT correspondence
… in the correlation functions of boundary gauge fields. Possible implications for the study of non-Fermi liquids are discussed.
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Black holes and solitons in string theory and M-theory: a low energy limit analysis
… with α ′ . In the context of the D = 5, N = 2 gauged STU model, we construct supersymmetric solitons, establishing new asymptotically locally AdS5 solutions with nontrivial boundary conditions for the gauge fields and their uplifts to type IIB supergravity. There exists a BPS limit for a …
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Exploration of new methods for Lattice QCD
… we study aims to improve data compression of gauge fields. It consists in generating a set of matrices distributed roughly uniformly along the group manifold, and constructing fine lattices around each of these matrices. We show that this compression can indeed provide better performance for …
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Nonlinear dissipative dynamics of optomechanical and laser arrays
… two different systems: (i) synthetic dynamical gauge fields for photons in optomechanical arrays and (ii) laser arrays with a topologically nontrivial structure. The chosen models are relevant to state-of-the-art optomechanical experiments as well as to recent implementations of topological …
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Cosmology of hidden sector with Higgs portal
… of hidden sector models which involve scalar fields that do not interact with the Standard Model gauge interactions, but couple directly to the Higgs field. We particularly focus on their relic particle density as a candidate for dark matter. For the case of hidden sector without a gauge field …
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Three-loop renormalization of Yang-Mills theory in background field gauge
Quantization and renormalization of non-Abelian gauge fields is studied. Yang-Mills theory is renormalized up to two-loops using the background field method retaining arbitrary value of the gauge parameter. The result confirms the expectations for calculations performed in background field gauge. …
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From quarks to cold atoms: the phases of strongly-interacting systems
… realized in the laboratory (e.g., non-Abelian gauge fields, quantum chromodynamics) is becoming increasingly real. Despite the widespread success of quantum chromodynamics (QCD), the theory of the strong nuclear force, much remains unknown about the properties of strongly-interacting quark …
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