Browsing Physics and Astronomy by Subject "optics"
Now showing items 1-6 of 6
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Experimental and theoretical demonstration of the feasibility of global quantum cryptography using satellites
(University of Waterloo, 2014-10-15)Information security is a growing concern in our modern world, where almost everything can be done online. To protect security, classical encryption protocols, such as RSA, are used. These encryption protocols are almost ... -
Few-Cycle Laser Pulse Generation and Characterization for Coulomb Explosion Imaging of Molecules
(University of Waterloo, 2020-01-22)Ultrashort pulses can induce coulomb explosions of molecules through which ionic fragments receive substantial momentum. These momenta, measured in coincidence, carry information about the molecule's initial geometry. ... -
Fundamental Tests of Quantum Mechanics using Two-Photon Entanglement
(University of Waterloo, 2014-04-30)In this thesis, we experimentally test fundamental properties of quantum mechanics, namely non-locality (in the form of three new families of Bell's inequalities) and the symmetry of envariance. To accomplish these we ... -
Noise refocusing in a five-blade neutron interferometer
(AIP Publishing, 2017-08-07)We provide a quantum information description of a proposed five-blade neutron interferometer geometry and show that it is robust against low-frequency mechanical vibrations and dephasing due to the dynamical phase. The ... -
Photonic Three-Level Systems Within the Framework of Generalised Probabilistic Theories
(University of Waterloo, 2021-09-24)If one seeks to test quantum theory not against a particular alternative but against many alternatives in a landscape of possibilities, it is crucial to be able to analyze experimental data in a theory-agnostic way. This ... -
Squashing Models for Optical Measurements in Quantum Communication
(University of Waterloo, 2009-10-02)Many protocols and experiments in quantum information science are described in terms of simple measurements on qubits. However, in an experimental implementation, the exact description of the measurement is usually more ...