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 20 of 69 for “"quantum technologies"”.
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Quantum light for quantum technologies
… (N00N) states. This is directly relevant to quantum lithography, and beating the Rayleigh diffraction limit. Next, we will develop a new scheme for quantum interferometry: dubbed coherent-light boosted super-sensitive quantum interferometry, which has the potential to reach below the shot …
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Quantum technologies with superconducting artificial atoms
… possible routes to the future exploitation of quantum technologies in superconducting artificial atoms. The objectives of the thesis are twofold. On the one hand, we study advanced control of the quantum states of individual artificial atoms, tailored at robust and faithful quantum information …
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DEVELOPMENT OF QUANTUM TECHNOLOGIES FOR QUANTUM COMMUNICATION
… Sistema Energetico – RSE S.p.A., investigates quantum communication in critical industrial environments, focusing on the electrical power grid, while also advancing experimental techniques for quantum-state generation and detection in the laboratory. A preliminary survey of Quantum Key …
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Machine-learning-assisted state and gate engineering for quantum technologies
… we discuss applications of machine learning to quantum information science. The interface between these two fields has been the subject of much research, recently, driven by the many successes of machine learning for diverse pattern recognition tasks. The work reported in this Thesis addresses …
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Quantum Resources in Quantum Technologies: From Quantum Optimization to Many-Body Physics
Significant progress has been made in quantum technologies over the past decade. Despite this success, a central question remains: to what extent quantum resources are being exploited. This question is crucial not only for benchmarking quantum systems but also to unlock their full potential. This …
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Excitons in Two-Dimensional Materials: from Many-Body Physics to Quantum Technologies
… of localised excitons, or excitons that are quantum con ned to a particular spatial location, resulting in single-photon emitters (SPE). Here, I explore the deterministic generation of SPEs in ML-WSe₂ and another TMD, ML-WS₂, by using pre-patterned substrates. The attractiveness of TMDs and …
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Rydberg atom networks for quantum technologies [Reti atomiche Rydberg per le tecnologie quantistiche]
Gli atomi di Rydberg sono destinati a diventare validi candidati per il progresso delle tecnologie quantistiche. Il loro principale vantaggio risiede nelle forti interazioni dipolari tra più atomi, che portano a fenomeni come la “blockade" e la facilitazione di Rydberg. Oltre a queste notevoli …
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Molecular Dynamics study of defect evolution mechanisms in material of interests for quantum technologies [Studio di Dinamica Molecolare dei meccanismi di evoluzione dei difetti nei materiali di interesse per le tecnologie quantistiche]
Abbiamo studiato la formazione e l'evoluzione dei difetti nel 3C–SiC utilizzando simulazioni di dinamica molecolare classica con potenziali interatomici dipendenti dall'ambiente. Il benchmarking preliminare ha incluso parametri reticolari, energie di formazione dei difetti e calcoli del punto di …
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Nonlinear Cavity Optomechanics in Diamond
… a particularly useful material for implementing quantum technologies due to the various defects known as color centers. These color centers can be coupled to both photons and phonons; therefore, they enable the realization of a hybrid quantum system that consists of spins, photons, and phonons. …
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Imaging and controlling atoms and semiconductor spins with advanced optical microscopy
Technologies based on the rules of quantum mechanics promise to dramatically outperform their classical counterparts. Atoms and atom-like semiconductor spins are outstanding quantum objects in which such quantum technologies are implemented. In developing quantum systems, optical microscopy is …
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Electrical behaviour of quantum systems at high frequencies - Bridging the gap between transistor and qubit
Devices harnessing quantum phenomena have made tremendous progress in the last decade, irreversibly changing the scientific and technological landscape. Quantum technologies have unlocked unprecedented performance and capabilities, while quantum computing has demonstrated computational advantage, …
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Nanoscale engineering of spin-based quantum devices in diamond
The development of quantum technologies from the bottom-up requires engineering and control at the level of single quanta. In this thesis, we explore the engineering of a particular quantum system: optically active defects in diamond, known as color centers. Color centers have a variety of …
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Coherence, Dephasing, and Quantum Interference in Colloidal Perovskite Nanocrystals
As the development of photonic quantum technologies continues to be pushed forward, the need for a source of quantum light, the so-called quantum emitter, has been ever-growing. The requirements for a quantum emitter are onerous: indistinguishable photon or entangled photon pairs need to be …
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Device- and application-adapted quantum error correction
Precise control of coherent quantum systems could enable new generations of sensing, communication and computing technologies. Such systems, however, are typically noisy and difficult to stabilize. One promising technique to this end is called quantum error correction, which encodes quantum states …
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ON THE CONTROL OF OPEN QUANTUM BATTERIES
Quantum control techniques provide a powerful framework to harness the potential of quantum technologies while addressing limitations imposed by noise and experimental constraints. These techniques enable critical tasks such as noise mitigation, dynamical shortcut engineering, and measurement …
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Quantum-coherent transport in low-dimensional mesoscopic structures and thin films
This thesis experimentally studies quantum interference phenomena and quantum coherence in mesoscopic systems, and quantum transport as well as magnetotransport in various materials system. One overarching aim is exploring the different mechanisms that give rise to quantum phase decoherence in …
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Light-Induced Collective Interactions in Arrays of Quantum Emitters
… in ancient Greece to the development of quantum mechanics and quantum electrodynamics in the past century. While the response of a single quantum emitter to light is well understood, the radiative properties of an ensemble of closely spaced emitters are far more intricate. Coupling to a …
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