Browsing Science (Faculty of) by Subject "quantum physics"
Now showing items 1-10 of 10
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Cats, Rotating Waves and Photons: An Excursion into Light-Matter Interaction
(University of Waterloo, 2023-09-27)This thesis hopes to achieve two modest goals. The primary goal is to formulate a practical theory for generating cat states by employing a resonant or detuned strong drive on a qubit coupled to a resonator. An incidental ... -
Electric field sensing near the surface microstructure of an atom chip using cold Rydberg atoms
(University of Waterloo, 2013-05-27)This thesis reports experimental observations of electric fields using Rydberg atoms, including dc field measurements near the surface of an atom chip, and demonstration of measurement techniques for ac fields far from ... -
Interpolated Collision Model Formalism
(University of Waterloo, 2020-09-16)The dynamics of open quantum systems (i.e., of quantum systems interacting with an uncontrolled environment) forms the basis of numerous active areas of research from quantum thermodynamics to quantum computing. One approach ... -
Loop Optimization of Tensor Network Renormalization: Algorithms and Applications
(University of Waterloo, 2019-05-22)Loop optimization for tensor network renormalization (loop-TNR) is a real-space renormalization group algorithm suitable for studying 1+1D critical systems. While the original proposal by Yang et al. focused on classical ... -
PPLN-based photon pair sources toward biphoton quantum frequency conversion
(University of Waterloo, 2018-08-03)While quantum properties of light promise much-needed enhancements to metrology, further development of quantum light sources and associated tools are needed to readily harness two-photon interactions via energy-time ... -
Quantum Information Enabled Neutron Interferometry
(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 ... -
Studies of symmetries that give special quantum states the "right to exist"
(University of Waterloo, 2015-05-01)In this thesis we study symmetric structures in Hilbert spaces known as symmetric informationally complete positive operator-valued measures (SIC-POVMs), mutually unbiased bases (MUBs), and MUB-balanced states. Our tools ... -
Tensor Networks and the Renormalization Group
(University of Waterloo, 2018-08-24)Tensor networks are a class of methods for studying many-body systems. They give a geometrical description of the internal structure of many-body states, operators, and partition functions, that can be used to implement ... -
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 ... -
Understanding sequential measurements in psi-epistemic ontological models
(University of Waterloo, 2019-08-06)Since the famous debates of Einstein & Bohr, physicists have argued about the nature of the quantum state. Is it best thought of as describing the-way-things-are out there in the world, or merely as a description of our ...