Now showing items 10043-10062 of 13304

    • Quantum Computation with Superconducting Parametric Cavity 

      Hung, Shih-Chun (University of Waterloo, 2020-12-14)
      Multimode superconducting parametric cavity is a flexible platform that has been used to study a variety of topics in microwave quantum optics ranging from parametric amplification, entanglement generation to higher order ...
    • Quantum Cost Models for Cryptanalysis of Isogenies 

      Jaques, Samuel (University of Waterloo, 2019-05-01)
      Isogeny-based cryptography uses keys large enough to resist a far-future attack from Tani’s algorithm, a quantum random walk on Johnson graphs. The key size is based on an analysis in the query model. Queries do not ...
    • Quantum critical responses via holographic models and conformal perturbation theory 

      Sierens, Todd (University of Waterloo, 2017-06-15)
      We investigate response functions near quantum critical points, allowing for finite temperature and a mild deformation by a relevant scalar. When the quantum critical point is described by a conformal field theory, we use ...
    • Quantum dot devices in silicon and dopant-free GaAs/AlGaAs heterostructures 

      Buonacorsi, Brandon (University of Waterloo, 2021-01-29)
      Single spin quantum dot qubits in silicon are a promising candidate for a scalable quantum processor due to their long coherence times, compact size, and ease of integration into existing fabrication technologies. Realizing ...
    • Quantum Dots for Intermediate Band in Solar Cells 

      Dashmiz, Shadi (University of Waterloo, 2013-01-25)
      The commercially available solar cells suffer from low efficiency and high cost. This would avoid presence of solar cells as a secure energy resource in the market. Problems stem from two facts. Firstly, band gap of materials ...
    • Quantum Dynamics and Statistical Mechanics of Endohedral Water 

      Yim, Spencer (University of Waterloo, 2016-09-07)
      Since first being synthesized in 2011,H2O@C60 has attracted much attention in the literature. Many interesting quantum phenomena are associated with this system, including ortho-para conversion, rotational ground state ...
    • Quantum effects in molecular systems 

      Faruk, Nabil (University of Waterloo, 2014-08-18)
      This thesis presents two different approaches and applications where nuclear dynamics are treated quantum mechanically in order to obtain more accurate theoretical predictions of molecular properties. In our first application, ...
    • Quantum experiments with single-photon spin-orbit lattice arrays 

      Xu, Ruoxuan (University of Waterloo, 2019-09-19)
      The thesis introduces two single-photon experiments with the lattice of spin-orbit arrays. The basic background knowledge has been introduced in Chapter 1. Chapters 2-4 describe the detailed techniques used in these two ...
    • Quantum Field Theory: Motivating the Axiom of Microcausality 

      Wright, Jessey (University of Waterloo, 2012-09-19)
      Axiomatic quantum field theory is one approach to the project of merging the special theory of relativity with that of ordinary quantum mechanics. The project begins with the postulation of a set of axioms. Axioms should ...
    • Quantum fields and machine learning 

      Melgarejo Lermas, Irene (University of Waterloo, 2020-09-25)
      In this thesis, we use detector models to study various properties of quantum fields. One such property is the correlations present in fields. It is known that two uncorrelated detectors, upon coupling to a quantum field, ...
    • Quantum Gates and Decoupling in Qubits with Fixed Transverse Coupling 

      Han, Guiyang (University of Waterloo, 2017-05-25)
      Among all the quantum computer candidates, the superconducting system is one of the most convincing platforms due to its strong couplings and scalability. To be more specific, this thesis focuses on the superconducting ...
    • Quantum Gravity Renormalization Group 

      Shyam, Vasudev (University of Waterloo, 2020-07-27)
      Investigations relating the emergence of the radial direction in the holography, solvable irrelevant deformations of conformal eld theories and holographic entanglement entropy are reported. Emphasis is laid on how ...
    • Quantum groundstates of the spin-1/2 XXZ model on a fully-frustrated honeycomb lattice 

      Inglis, Stephen (University of Waterloo, 2010-10-01)
      In this thesis we present results from quantum Monte Carlo for the fully-frustrated honeycomb lattice. The XXZ model is of interest in the classical limit, as there is a mapping between the classical fully-frustrated ...
    • Quantum Hacking in the Age of Measurement-Device-Independent Quantum Cryptography 

      Huang, Anqi (University of Waterloo, 2018-04-13)
      Cryptography is essential for secure communication in the digital era. Today, public-key cryptography is widely employed, and has provided an efficient method for encrypting content and ensuring both confidentiality and ...
    • Quantum Indefinite Spacetime: Part II 

      Jia, Ding (University of Waterloo, 2018-09-10)
      We adopt an operational mode of thinking to study spacetime fluctuations and their impacts on questions of quantum gravity. Particular emphasis is put on studying causal structure fluctuations. The study is guided by the ...
    • Quantum independence and chromatic numbers 

      Sobchuk, Mariia (University of Waterloo, 2019-08-28)
      In this thesis we are studying the cases when quantum independence and quantum chromatic numbers coincide with or differ from their classical counterparts. Knowing about the relation of chromatic numbers separation to the ...
    • Quantum Information across Spacetime: From Gravitational Waves to Spinning Black Holes 

      Robbins, Matthew (University of Waterloo, 2021-08-20)
      This thesis is split into two parts. In the first part, we investigate Bose-Einstein condensates (BECs) as a means to detect gravitational waves. For the detection of continuous gravitational waves, we study its sensitivity ...
    • Quantum Information and Variants of Interactive Proof Systems 

      Upadhyay, Sarvagya (University of Waterloo, 2011-08-24)
      For nearly three decades, the model of interactive proof systems and its variants have been central to many important and exciting developments in computational complexity theory such as exact characterization of some well ...
    • Quantum Information Enabled Neutron Interferometry 

      Nsofini, Joachim (University of Waterloo, 2017-06-12)
      Neutron interferometry with its ability to encode and extract information provides a test bed for quantum mechanics and precise measurement of physical quantities of significant importance in physics. However, this ...
    • Quantum Information Processing with Adversarial Devices 

      McKague, Matthew (University of Waterloo, 2010-06-09)
      We consider several applications in black-box quantum computation in which untrusted physical quantum devices are connected together to produce an experiment. By examining the outcome statistics of such an experiment, and ...

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