Browsing Science (Faculty of) by Supervisor "Mann, Robert"
Now showing items 21-31 of 31
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The quantum and the gravity: Newtonian and Cosmological applications
(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
(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 Information across Spacetime: From Gravitational Waves to Spinning Black Holes
(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 Probings of Curved Spacetimes
(University of Waterloo, 2021-08-10)This thesis is divided into two parts. The first part studies the response of Unruh DeWitt detectors in different spacetimes. One of the main goals here is to demonstrate that Unruh DeWitt detectors can detect spacetime ... -
Quantum-Classical Correspondence and Entanglement in Periodically Driven Spin Systems
(University of Waterloo, 2019-08-09)This dissertation sets out to examine some fundamental open questions in quantum physics regarding quantum-classical correspondence in regular versus chaotic systems. Specifically, we study these questions using approaches ... -
The Roles of Causal Propagator in Relativistic Quantum Information
(University of Waterloo, 2023-05-29)This thesis focuses on the roles of causal propagator — the expectation value of the field commutator — in relativistic quantum information. Consider two observers Alice and Bob, each carrying a two-level quantum system ... -
Sensing the shape of spacetime: detector response and entanglement harvesting in curved space
(University of Waterloo, 2019-01-24)This thesis seeks to understand what information Unruh-DeWitt detectors can gain about the structure of spacetime. By coupling to the quantum state of a field on a curved space, the detectors can gain information about ... -
Studying Black Holes in Superposition Using Unruh-DeWitt Particle Detectors
(University of Waterloo, 2022-09-27)In quantum gravity, we expect black holes to exist in quantum superposition. However, the measurable effects of black hole superpositions have not been studied widely. In this thesis, we study superpositions of different ... -
Thermodynamics and Universality in Anisotropic Higher Curvature Spacetimes
(University of Waterloo, 2016-06-16)In my thesis, I describe new results in the thermodynamics of black holes in two gravitational scenarios: spacetime anisotropy and higher curvature gravity. I focus on classifying the critical point of "Large Black Hole / ... -
Towards Practical Hybrid Quantum / Classical Computing
(University of Waterloo, 2020-09-28)Quantum computing is in a critical phase where theoretical schemes and protocols are now being implemented in the real world for the first time. Experimental implementations can help us solidify ideas, and can also complicate ... -
Wigner negativity on the sphere
(University of Waterloo, 2023-08-15)The rise of quantum information theory has largely vindicated the long-held belief that Wigner negativity is an indicator of genuine nonclassicality in quantum systems. This thesis explores its manifestation in spin-j ...