Now showing items 2194-2213 of 2965

    • Quantum Algorithms for Interpolation and Sampling 

      Motamedi, Arsalan (University of Waterloo, 2023-08-15)
      Gibbs sampling from continuous real-valued functions is a challenging problem of interest in machine learning. Here we leverage quantum Fourier transforms to build a quantum algorithm for this task when the function is ...
    • The quantum and the gravity: Newtonian and Cosmological applications 

      Altamirano, Natacha (University of Waterloo, 2018-07-18)
      The gravitational decoherence field studies the suppression of coherence in quantum systems caused by effects rooted in the gravitational interaction. This models are not just important to yield interesting ideas about the ...
    • Quantum Annealing: Research and Applications 

      Mohamed, Mayar (University of Waterloo, 2021-09-28)
      This thesis studies several aspects of the quantum annealing (QA) computing approach. Quantum annealers' primary objective is to solve hard computational optimization problems. Because these optimization problems are in ...
    • Quantum Aspects of Black Holes: From Microstates to Echoes and Somewhere In-Between 

      Saraswat, Krishan (University of Waterloo, 2023-05-23)
      In this thesis we explore quantum aspects of black holes from a variety of perspectives. In part I of this thesis we are motivated by the black hole information paradox to explore the idea of gravitational wave echoes ...
    • Quantum Black Holes in the Sky 

      Wang, Qingwen (University of Waterloo, 2020-09-30)
      Black Holes are possibly the most enigmatic objects in our Universe. From their detection in gravitational waves upon their mergers, to their snapshot eating at the centres of galaxies, black hole astrophysics has undergone ...
    • Quantum Blind Data Compression and Structure of Quantum Operations Approximately Preserving Quantum States 

      Kuroiwa, Kohdai (University of Waterloo, 2021-07-29)
      In this thesis, we investigate a variation of quantum information processing tasks, blind data compression, and we analyze an approximation of a structure of a set of quantum states closely related to the task, which is ...
    • Quantum Computational Particle Physics: Algorithms, Resource Estimation, and Model-Building 

      Kan, Angus (University of Waterloo, 2022-03-24)
      Quantum simulation is one of the most promising applications of quantum computers. It is anticipated that quantum simulation will accelerate scientific discovery, and advance our understanding of nature. One area that ...
    • Quantum correlations in a noisy neutron interferometer 

      Wood, Christopher J.; Abutaleb, Mohamed O.; Huber, Michael G.; Arif, Muhammad; Cory, David G.; Pushin, Dimitry A. (American Physical Society, 2014-09-15)
      We investigate quantum coherences in the presence of noise by entangling the spin and path degrees of freedom of the output neutron beam from a noisy three-blade perfect crystal neutron interferometer. We find that in the ...
    • 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 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 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 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 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 key distribution devices: How to make them and how to break them 

      Kaiser, Sarah (University of Waterloo, 2016-08-30)
      As more aspects of modern society depend on digital communication, we increasingly rely on infrastructure that ensures the privacy and security of this communication. Classically, this has been provided by cryptographic ...
    • Quantum mechanical free energy calculations using path integral molecular dynamics 

      Bishop, Kevin (University of Waterloo, 2019-12-19)
      Free energy calculations are one of the most powerful tools within modern theoretical chemistry and are often used to make comparisons with experimental results. Existing free energy calculations are typically performed ...
    • Quantum Methodologies for the simulation of molecular hydrogen: from dimers to linear chains 

      Marr, Adam (University of Waterloo, 2020-12-03)
      Hydrogen has long been considered an ideal model system for a variety of molecular configurations, given its chemical simplicity and ubiquitous nature in the world. However, the weak van der Waals forces that exist between ...


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