Browsing Physics and Astronomy by Subject "Physics (Quantum Information)"
Now showing items 1-15 of 15
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Achievable Polarization for Heat-Bath Algorithmic Cooling
(University of Waterloo, 2015-08-17)Highly pure quantum states play a central role in applications of quantum information science, both as initial states for quantum algorithms and as resources for quantum error correction. Controlled preparation of pure ... -
Characterization, Verification and Control for Large Quantum Systems
(University of Waterloo, 2015-03-31)Quantum information processing offers potential improvements to a wide range of computing endevaors, including cryptography, chemistry simulations and machine learning. The development of practical quantum information ... -
Coherent control of nuclear and electron spins for quantum information processing
(University of Waterloo, 2015-08-10)The ability to perform quantum error correction (QEC) arbitrarily many cycles is a significant challenge for scalable quantum information processing (QIP). Key requirements for multiple-round QEC are a high degree of quantum ... -
Experimental Investigation into Spatial Quantum Optical Properties for Satellite Targeting through the Turbulent Atmosphere
(University of Waterloo, 2013-09-04)A major field of research at the current time is that of implementing Quantum Key Distribution over large distances using satellites. If this protocol works with this technology, it will have huge implications on future ... -
Experimentally Testable Noncontextuality Inequalities Via Fourier-Motzkin Elimination
(University of Waterloo, 2015-09-29)Generalized noncontextuality as defined by Spekkens is an attempt to make precise the distinction between classical and quantum theories. It is a restriction on models used to reproduce the predictions of quantum mechanics. ... -
Initialization and characterization of open quantum systems
(University of Waterloo, 2015-08-21)In this thesis we address three topics of open quantum systems theory. The first concerns the operational characterization of an open quantum system. We develop a graphical calculus for open quantum systems and use it to ... -
Mode Invisibility Technique - A Quantum Non-Demolition Measurement for Light
(University of Waterloo, 2014-07-14)The act of measuring an observable of a quantum system introduces backaction noise to the measured system. In the most extreme case, the system gets destroyed with its state left unavailable for future measurement. An ... -
Parallelizing quantum circuit synthesis
(University of Waterloo, 2015-04-24)We present an algorithmic framework for parallel quantum circuit synthesis using meet-in-the-middle synthesis techniques. We also present two implementations thereof, using both threaded and hybrid parallelization ... -
Practical Quantum Communication
(University of Waterloo, 2015-10-30)Current communication networks are based on classical physics and classical information-processing. However, for nearly a century, we have known that at its most fundamental level, the universe is governed by the laws of ... -
The Practical Realization of Quantum Repeaters: An Exploration
(University of Waterloo, 2015-10-27)This thesis is an exploration of quantum repeaters from a practical point of view. Quantum repeaters are devices which help improve the quantum communication capacity of a lossy bosonic channel (which include photonic ... -
Quantum tests of causal structures and non-orthogonal states
(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 ... -
The Security of Simplified Trusted Relays
(University of Waterloo, 2014-08-27)This thesis examines the security of performing quantum key distribution (QKD) with a simplified trusted relay (STR). The protocol carries out the quantum phase of a conventional trusted relay, however, reduces the required ... -
Theoretical Analysis of A Protected Superconducting Qubit
(University of Waterloo, 2015-11-02)In the past few decades, quantum computation has become an active area of research due to prospects to execute high-efficiency quantum algorithms. Quantum algorithms promise to accelerate many practical computation problems, ... -
Topics on the information theoretic limits of quantum information processing and its implementation
(University of Waterloo, 2015-02-24)Recent advances in quantum technologies enabled us to make large quantum states and pushed towards examining quantum theory at the macroscopic level. However observation of quantum e ects at a macroscopic level still ... -
Towards magnetic force sensing of single molecules using suspended carbon nanotubes
(University of Waterloo, 2014-08-19)Measuring the magnetic moment of a single spin remains an experimental challenge. Measuring such a moment at timescales relevant to relaxation in many small spin systems, even more so. However, such a measurement would ...