Browsing Physics and Astronomy by Title
Now showing items 705-724 of 777
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Topics on the information theoretic limits of quantum information processing and its implementation
(University of Waterloo, 2015-02-24)Recent advances in quantum technologies enabled us to make large quantum states and pushed towards examining quantum theory at the macroscopic level. However observation of quantum e ects at a macroscopic level still ... -
Topological and superconducting properties of Weyl and Dirac metals
(University of Waterloo, 2018-08-30)In this work we explore superconductivity and surface states in topological semimetals. We start from general overview of basic properties of topological semimetals. We review general concepts of Chern insulators, their ... -
Topological aspects of nodal-loop semimetals and the nature of spin-orbit coupling in Lu₂V₂O₇
(University of Waterloo, 2021-09-27)This thesis is presented in two parts: (I) understanding the topological aspects of nodal-loop semimetals in the presence of interactions and (II) exploring the nature of spin-orbit coupling in the pyrochlore oxide Lu₂V₂O₇. ... -
Topological Manipulations of Quantum Field Theories
(University of Waterloo, 2023-07-17)In this thesis we study some topological aspects of Quantum Field Theories (QFTs). In particular, we study the way in which an arbitrary QFT can be separated into “local” and “global” data by means of a “symmetry Topological ... -
Topological methods in quantum gravity
(University of Waterloo, 2005)The main technical problem with background independent approaches to quantum gravity is inapplicability of standard quantum field theory methods. New methods are needed which would be adapted to the basic principles ... -
Topological Order and Universal Properties of Gapped Quantum Systems
(University of Waterloo, 2018-11-15)Phases of gapped quantum liquids are topologically ordered and have very interesting physical features that are completely robust against any local perturbation that do not close the bulk energy gap. These universal ... -
Topological Order in String Liquids and Weyl Semimetals
(University of Waterloo, 2022-08-22)Outside Landau's paradigm of symmetry-breaking orders is the class of topological orders, which cannot be described by a local order parameters. Such orders are generally defined by the presence of a gauge symmetry and ... -
Topological Semimetals
(University of Waterloo, 2012-08-31)This thesis describes two topological phases of matter, the Weyl semimetal and the line node semimetal, that are related to but distinct from topological insulator phases. These new topological phases are semimetallic, ... -
Topology and interactions in Weyl metals and quantum Hall systems
(University of Waterloo, 2017-05-10)In recent years it became clear that in the Condensed Matter physics, the study of the interactions and the topology allows one to find and to describe many new phases of matter. Even more interest was drawn by the ... -
Topology in Fundamental Physics
(University of Waterloo, 2011-09-02)In this thesis I present a mathematical tool for understanding the spin networks that arise from the study of the loop states of quantum gravity. The spin networks that arise in quantum gravity possess more information ... -
Toward a theory of everything
(University of Waterloo, 2023-08-21)A physical theory of everything is supposed to tell us: (1) The dynamical laws for matter and gravity; (2) The boundary condition of the universe; (3) The relation between the theory and experience. I present a personal ... -
Toward Canonical General Relativity in the Loop Gravity Phase Space
(University of Waterloo, 2014-01-07)The continuous, kinematical Hilbert space of loop quantum gravity is built upon a family of spaces $\mathcal{H}_\Gamma$, each associated to a different \textit{graph} $\Gamma$, i.e. a network of interconnected one-dimensional ... -
Toward standardization of Quantum Key Distribution
(University of Waterloo, 2020-09-03)Information security becomes an inseparable part of our everyday life. An encryption method widely used today is public-key encryption. The security of this method is based on a hard to solve mathematical problems against ... -
Toward Ultracold Atoms for Quantum Thermalization Studies
(University of Waterloo, 2023-01-02)Ultracold atoms are a great platform to understand one of the most interesting open problems in physics: quantum thermalization. Building a new lab for ultracold atoms is a challenging task for the various tools that ... -
Towards Analog Quantum Simulations of Dynamical Gauge Theories
(University of Waterloo, 2017-09-20)A system which can implement an analog quantum simulation of lattice gauge theories has been proposed. In particular, the Schwinger model is formulated in terms of a lattice and superconducting qubit implementation is ... -
Towards Dual-Isotope Entangling Gates for Trapped-Ion Quantum Computing
(University of Waterloo, 2022-09-14)Entangling gates are essential to the development in the capabilities of any trapped-ion quantum computer. High-fidelity entangling gates have previously been demonstrated on trapped-ion quantum hardware with single species ... -
Towards InAs nanowire double quantum dots for quantum information processing
(University of Waterloo, 2010-11-03)Currently, a major challenge for solid-state spin qubit systems is achieving one-qubit operations on a timescale shorter than the spin coherence time, T2*, a goal currently two orders of magnitude away. By taking advantage ... -
Towards magnetic force sensing of single molecules using suspended carbon nanotubes
(University of Waterloo, 2014-08-19)Measuring the magnetic moment of a single spin remains an experimental challenge. Measuring such a moment at timescales relevant to relaxation in many small spin systems, even more so. However, such a measurement would ... -
Towards many-body physics with Rydberg-dressed cavity polaritons
(University of Waterloo, 2018-05-23)An exciting frontier in quantum information science is the creation and manipulation of bottom-up quantum systems that are built and controlled one by one. For the past 30 years, we have witnessed signi cant progresses ... -
Towards Maximal Cell Density Predictions for Polymeric Foams
(Elsevier, 2011-10-04)Self-consistent field theory is used to make direct predictions for the maximum possible cell densities for model polymer foam systems without recourse to classical nucleation theory or activation barrier kinetic arguments. ...