Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"cQED"”.
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MEMS enabled Fabry-Perot cavity for cQED experiments
The development of novel experimental techniques in atomic physics is allowing for the manipulation and control of atoms in structured silicon chips. These new techniques to manipulate atoms in a chip require building micro systems on chip that support actuation, alignment control and tunability …
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Coherently-driven exciton polaritons and directional cQED effects in the quantum dot-micropillar system
Cavity quantum electrodynamic (cQED) systems have attracted extensive research interest in the past decades as the main driving force of quantum optics. First experimental demonstrations focused on the enhancement of spontaneous emission and optical nonlinearities related to a single quantum …
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Quantum Semiconductor Structures Dressed with Terahertz Cavity Photons
Cavity quantum electrodynamics (cQED) deals with an ensemble of two-level atoms coupled with a single mode of electromagnetic fields in a cavity. The theory of atomic cQED is well-developed, allowing one to make precise predictions for the quantum dynamics of atom–photon hybrids, indispensable for …
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Casimir-Polder interaction in second quantization
… a cornerstone of cavity quantum electrodynamics (cQED), and theoretically well established. Recently, Bose-Einstein condensates (BECs) of ultracold atoms have been used to test the predictions of cQED. The purpose of the present thesis is to upgrade single-atom cQED with the many-body theory …
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Multimode Circuit Quantum Electrodynamics With Superconducting Metamaterial Resonators
… devices in circuit quantum electrodynamics (cQED) systems are one of the leading approaches for realizing scalable quantum information processors. The combination of cQED architectures with multimode resonator systems can provide a flexible platform for performing analog quantum simulations, …
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Microstrip Superconducting Quantum Interference Devices for Quantum Information Science
… from this is circuit quantum electrodynamics (cQED). The development of circuit quantum electrodynamics---which implements techniques of quantum optics at microwave frequencies---has led to revolutionary progress in the field of quantum information science. cQED employs quantum bits (qubits) …
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Exploring Novel Quantum Physics Using Ytterbium-171 in An Optical Cavity
… development of a cavity quantum electrodynamics (CQED) system using single or multiple ensembles of ytterbium-171 atoms and its use for quantum metrology and quantum information science investigations. We develop and study a unified theoretical framework that describes CQED spin systems. We unify …
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A systematic computational study of cavity and waveguide quantum electrodynamics
… cavity and waveguide quantum electrodynamics (CQED and WQED, respectively) is presented. By utilizing the classical dyadic Green's function, the quantum many body problem of multiple atoms interacting with an arbitrary lossless electromagnetic environment is reduced to a computationally …
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Flux-tunable superconducting transmons for quantum information processing
… I will present experiments using the cQED architecture to implement fast photon swapping between an asymmetric qubit and a superconducting resonator using flux-driven sidebands. This is the first experimental observation of flux-driven sidebands in a superconducting system. This …
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Fabrication of Superconducting Reflectionless Filters for Quantum Microwave Circuits
… (TWPAs) and circuit quantum electrodynamics (cQED) architectures. The filters exhibit low insertion loss in the passband to maintain quantum measurement efficiency and provide broadband reflection suppression across frequencies relevant to superconducting qubits, offering a scalable way to …
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A computational electromagnetic framework for waveguide quantum electrodynamics
… for cavity and waveguide quantum electrodynamic (CQED, and WQED, respectively) problems is presented. The essence of this framework is to use the dyadic Green's function (DGF) to obtain the local density of states (LDOS) and radiative shift of a two-level system (TLS) embedded in an arbitrary …
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Optimizing coherence and anharmonicity of superconducting qubit
… by introducing circuit quantum electrodynamics (cQED), a framework for building superconducting qubits. We follow with a theoretical discussion of decoherence in two-state quantum systems, described by the Bloch-Redfield formalism. We continue the discussion by estimating decoherence using …
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Thermodynamic Based Framework for Determining Sustainable Electric Infrastructures as well as Modeling of Decoherence in Quantum Composite Systems
… with data obtained experimentally by the CQED group at Paris. The SEA-QT method applied in this dissertation provides an alternative and comprehensive explanation to that obtained with the "open system" approach of Quantum Thermodynamics (QT) and its associated quantum master equations of …
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Raman Cooling to High Phase Space Density
… of a Rydberg cavity quantum electrodynamics (cQED) experiment is discussed. The apparatus is designed to house two optical cavities and two imaging systems. One optical cavity is asymmetric in mirror transmission, and a method is demonstrated for measuring the offset between the trap and probe …