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 45 for “"Quantum networks"”.
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PROTOCOLS FOR QUANTUM NETWORKS
… have demonstrated the feasibility of various quantum computing and quantum cryptographic tasks. Most of these works are focused on computation involving up to two parties where the parties are connected via a direct quantum link. However, for computations involving more than two parties the …
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Nonclassicality in noisy quantum networks
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-03-01 without embargo terms
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Distributed Entanglement in Deployable Quantum Networks
Quantum networks exhibit enhanced performance compared to their classical counterparts, enabling secure communication and enhanced sensing protocols. Scalable quantum networks must transmit photons over distances ranging from kilometers to metropolitan scales while preserving entanglement. The …
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Towards quantum networks: Theory, experiment, and applications
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Towards quantum networks: Theory, experiment, and applications
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2024-09-16 without embargo terms
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Quantum networks : state transmission and network operation
Quantum information science is believed to create the next technological revolution. As key ingredients of quantum information science, quantum networks enable various technologies such as secure communication, distributed quantum sensing, quantum cloud computing, and next-generation positioning, …
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Semiconductor-generated entangled photons for hybrid quantum networks
The deterministic generation and manipulation of quantum states has attracted much interest ever since the rise of quantum mechanics. Large-scale, distributed quantum states are the basis for novel applications such as quantum communication, quantum remote sensing, distributed quantum computing or …
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PROTECTING PRIVACY AND SECURING DATABASES WITH QUANTUM NETWORKS
… entry from a database. We propose the use of a quantum key distribution (QKD) network to supply the necessary IT-secure symmetric keys for the first IT-secure implementation of a two-database SPIR. This is demonstrated experimentally on a fingerprint database using a …
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Multiplexed Quantum Networks for High-Fidelity Entanglement Distribution
… experimentally realizing the building blocks of quantum repeaters. Repeater architectures with multiplexed quantum memories have been proposed to increase entanglement distribution rates, but an open challenge is to maintain entanglement fidelity over long distances. In this thesis, I present a …
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Protocols and Devices for Scalable Spin-Photon Quantum Networks
One of the central goals in quantum information science is constructing a quantum network useful for quantum communication, sensing, and computation. Its realization crucially depends on efficient distribution of entanglement. A promising approach entails connecting quantum nodes via photons, which …
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Computing and the electrical transport properties of coupled quantum networks
… of investigations were conducted on ballistic quantum networks in the mesoscopic range. In this regime, the wave nature of electron transport under the influence of transverse magnetic fields leads to interesting applications for digital logic and computing circuits. The work specifically looks …
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Techniques for Deployed Quantum Networks with Solid-State Defect Centers
… tremendous progress towards the development of quantum networks, wherein quantum states are transmitted over long distances for applications in distributed quantum computing, quantum-enhanced metrology, and quantum key distribution. In particular, recent results have demonstrated the fundamental …
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Investigation of efficient spin-photon interfaces for the realisation of quantum networks
Quantum networks lie at the heart of distributed quantum computing and secure quantum communication - research areas that have seen a strong increase of interest over the last decade. Their basic architecture consist of stationary nodes composed of quantum processors which are linked via photonic …
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A Vertically Loaded Diamond Microdisk Resonator (VLDMoRt) towards a Scalable Quantum Networks
… for increasing the efficiency and scalability of quantum devices based on diamond quantum emitters.
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Developing the spin qubit of the tin-vacancy center in diamond for quantum networks
Quantum technologies working towards quantum computation and quantum communication have made tremendous progress over the past few years, highlighted by the 2019 "quantum supremacy" achievement demonstrating that quantum computers can realize calculations intractable to classical computers [5]. …
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Design and implementation of low size, weight, and power (SWaP) systems for mobile quantum networks
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2024-05-01
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Polarization entanglement storage in ensemble-based atomic memories
Quantum networks enable the long-distance communication of quantum states through teleportation, but require, in advance, the robust distribution of entanglement between relevant parties. Engineering these networks requires quantum interconnects, which convert quantum states in one physical system …
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An Approach to Optimising the Design of a Repeaterless Global Quantum Network
A global quantum network will soon be possible, however investigations on its design are limited. Fibre-based optimisations focus on device placement. Cost analysis including nodes, fibres and usage of optical switching has been insufficiently explored. Satellite quantum key distribution is …
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Quantum cryptography : security analysis of multiuser quantum communication with embedded authentication
Three quantum cryptographic protocols of multiuser quantum networks with embedded authentication, allowing quantum key distribution or quantum direct communication, are discussed in this work. The security of the protocols against different types of attacks is analysed with a focus on various …
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DEPLOYED QUANTUM KEY DISTRIBUTION WITH A ROOM-TEMPERATURE TELECOM SINGLE PHOTON SOURCE
Quantum key distribution (QKD) allows distant users to communicate with perfect secrecy based on the principles of quantum physics. Practical QKD in deployed fibers serves as an important part of the future quantum networks. Although Weak Coherent Pulses have achieved impressive key rates as QKD …
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