Now showing items 9727-9746 of 12839

    • Quantum Reference Frames and The Poincaré Symmetry 

      Kabernik, Oleg (University of Waterloo, 2014-09-19)
      The concept of a reference frame has been a part of the physical formalism since the early days of physics. The reference frame was always understood as a physical system with respect to which states of other physical ...
    • Quantum Rejection Sampling 

      Shayeghi, Ala (University of Waterloo, 2015-01-21)
      Let H be a finite dimensional Hilbert space and ρ, σ ∈ D(H) be quantum states in H such that S(ρ||σ) is finite. In this thesis, we consider the following communication task involving two parties Alice and Bob. Suppose ...
    • Quantum Snake Walk on Graphs 

      Rosmanis, Ansis (University of Waterloo, 2010-01-13)
      Quantum walks on graphs have been proven to be a useful tool in quantum algorithm construction for various problems. In this thesis we introduce a new type of continuous-time quantum walk on graphs called the quantum snake ...
    • Quantum Speed-ups for Boolean Satisfiability and Derivative-Free Optimization 

      Arunachalam, Srinivasan (University of Waterloo, 2014-04-21)
      In this thesis, we have considered two important problems, Boolean satisfiability (SAT) and derivative free optimization in the context of large scale quantum computers. In the first part, we survey well known classical ...
    • Quantum State Local Distinguishability via Convex Optimization 

      Cosentino, Alessandro (University of Waterloo, 2015-08-24)
      Entanglement and nonlocality play a fundamental role in quantum computing. To understand the interplay between these phenomena, researchers have considered the model of local operations and classical communication, or LOCC ...
    • Quantum state purification 

      Fu, Honghao (University of Waterloo, 2016-08-29)
      Quantum state purification is a process in which decoherence is partially reversed by using multiple copies of the input states that have been subject to the same decoherence effect. This thesis focuses on purifying the ...
    • Quantum State Transfer in Graphs 

      Coutinho, Gabriel (University of Waterloo, 2014-08-13)
      Let X be a graph, A its adjacency matrix, and t a non-negative real number. The matrix exp(i t A) determines the evolution in time of a certain quantum system defined on the graph. It represents a continuous-time quantum ...
    • Quantum Strategies and Local Operations 

      Gutoski, Gustav (University of Waterloo, 2010-01-06)
      This thesis is divided into two parts. In Part I we introduce a new formalism for quantum strategies, which specify the actions of one party in any multi-party interaction involving the exchange of multiple quantum messages ...
    • Quantum tests of causal structures and non-orthogonal states 

      Agnew, Megan (University of Waterloo, 2014-06-13)
      This thesis details two experimental tests that can be applied to particular quantum states to reveal important information. We begin by discussing the relevant background in quantum information. We introduce qubits and ...
    • Quantum Walks on Oriented Graphs 

      Lato, Sabrina (University of Waterloo, 2019-01-11)
      This thesis extends results about periodicity and perfect state transfer to oriented graphs. We prove that if a vertex a is periodic, then elements of the eigenvalue support lie in Z √∆ for some squarefree negative ...
    • Quantum Walks on Strongly Regular Graphs 

      Guo, Krystal (University of Waterloo, 2010-08-30)
      This thesis studies the transition matrix of a quantum walk on strongly regular graphs. It is proposed by Emms, Hancock, Severini and Wilson in 2006, that the spectrum of a matrix based on the amplitudes of walks in the ...
    • Quantum-information approach to dynamical diffraction theory 

      Nsofini, Joachim; Ghofrani, Kamyar; Sarenac, Dusan; Cory, David G.; Pushin, Dimitry A. (American Physical Society, 2016-12-08)
      We present a simplified model for dynamical diffraction of particles through a periodic thick perfect crystal based on repeated application of a coherent beam-splitting unitary at coarse-grained lattice sites. By demanding ...
    • A quasi-experimental study of a mandatory calorie-labelling policy in restaurants: Impact on use of nutrition information among youth and young adults in Canada 

      Goodman, Samantha; Vanderlee, Lana; White, Christine M.; Hammond, David (Elsevier, 2018-11-01)
      In 2017, Ontario became the first Canadian province to require calorie amounts on menus/menu boards of chain restaurants. The province of British Columbia (BC) implemented a voluntary nutrition information initiative in ...
    • Quasi-Hopf Symmetry in Loop Quantum Gravity with Cosmological constant and Spinfoams with timelike surfaces 

      Rennert, Julian (University of Waterloo, 2018-09-20)
      In this thesis we study two separate problems concerning improvements to the Loop quantum gravity and spinfoam approach to quantum gravity. In the first part we address the question about the origin of quantum group ...
    • Quasi-Monte Carlo methods, applications in finance and actuarial science 

      Tan, Ken Seng (University of Waterloo, 1998)
    • Quasi-Static Approximation for Numerical Computation of Plasmon Eigenfrequencies in Nanoparticles 

      Alsisi, Abdulhamed (University of Waterloo, 2014-08-28)
      General physical properties of electrostatic (plasmon) resonances in nanoparticles are presented. Direct calculation of the resonance values of the permittivity of nanoparticles, and subsequently their resonance frequencies, ...
    • A Quasilocal Hamiltonian for Gravity with Classical and Quantum Applications 

      Booth, Ivan (University of Waterloo, 2000)
      I modify the quasilocal energy formalism of Brown and York into a purely Hamiltonian form. As part of the reformulation, I remove their restriction that the time evolution of the boundary of the spacetime be orthogonal ...
    • A quasilocal Hamiltonian for gravity with classical and quantum applications 

      Booth, Ivan S. N. (University of Waterloo, 2000)
    • Quaternary Geomorphology of the Quebec North Shore, Godbout to Sept-Iles 

      Dredge, Linda Ann (University of Waterloo, 2016-09-27)
      This report presents a summary of the physical properties of surficial deposits, evolution of the landscape and economic aspects of the materials. Surficial geology maps of the Sept-Iles and Cap Chat map sheets, at a scale ...
    • Quaternary Stratigraphy and Glacial Dynamics from a Core Region of the Laurentide Ice Sheet, Aberdeen Lake, Kivalliq, Nunavut 

      Hodder, Tyler James (University of Waterloo, 2015-01-16)
      Central Kivalliq, mainland Nunavut west of Hudson Bay and north of Manitoba, was a long-standing core region of the Laurentide Ice Sheet (LIS). The location of the Keewatin Ice Divide (KID), a major ice spreading region ...


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