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dc.contributor.authorGustin, Chris
dc.contributor.otherQueen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))en
dc.date.accessioned2019-06-04T20:31:17Z
dc.date.available2019-06-04T20:31:17Z
dc.identifier.urihttp://hdl.handle.net/1974/26270
dc.description.abstractQuantum dots (QDs) integrated in nanophotonic environments provide an excellent platform for quantum information technologies and engineerable light-matter interactions. One application is a solid-state single photon source (SPS), where a QD in an optical cavity can be used to emit antibunched photons. This setup can provide photons on-demand if excited with a pulse, which renders the problem of modelling the QD SPS a genuinely time-dependent problem in quantum optics. Furthermore, the QD-cavity system interacts with its environment via electron-phonon scattering with the surrounding lattice as well as coupling to the photonic background, which causes decoherence and necessitates an open quantum system framework. In this thesis, we study pulse-driven QDs coupled to photonic environments and phonon reservoirs using an open system quantum optics approach, with a focus on elements unique to the time-dependent dynamics. After introducing the necessary theoretical background, first we present an analysis of the impact of electron-phonon scattering on a proposal for a QD-cavity system which uses adiabatic passage to generate triggered single photons of orthogonal polarization to the excitation fields. Next, we provide an analysis of the resonance fluorescence spectrum of two-level systems (including QDs) driven by a pulse, with particular emphasis on where spectral asymmetries can arise. Last, we study resonantly excited QD-cavity SPSs with attention given to how the excitation pulse can affect the quantum dynamics and SPS figures-of-merit. We show that the excitation process can degrade the figures-of-merit to a degree comparable to the electron-phonon interaction. We also find that a dynamical decoupling effect between the QD and its environment plays a large role in suppressing multi-photon emission, and we demonstrate how this effect can be modelled by using a time-dependent and time-convolutionless quantum master equation which incorporates non-Markovian effects associated with the pulse. These findings have implications on both the theoretical understanding of pulsed QD light-matter interactions, as well as on how SPSs can be optimized.en_US
dc.language.isoenen_US
dc.relation.ispartofseriesCanadian thesesen
dc.rightsQueen's University's Thesis/Dissertation Non-Exclusive License for Deposit to QSpace and Library and Archives Canadaen
dc.rightsProQuest PhD and Master's Theses International Dissemination Agreementen
dc.rightsIntellectual Property Guidelines at Queen's Universityen
dc.rightsCopying and Preserving Your Thesisen
dc.rightsThis publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.en
dc.subjectnanophotonicsen_US
dc.subjectquantum opticsen_US
dc.subjectopen quantum systemsen_US
dc.subjectquantum dotsen_US
dc.titleTheory and Modelling of Pulse-Driven Quantum Dots in Nanophotonic Structuresen_US
dc.typethesisen
dc.description.degreeMaster of Applied Scienceen_US
dc.contributor.supervisorHughes, Stephen
dc.contributor.departmentPhysics, Engineering Physics and Astronomyen_US


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