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Communication Between Quantum Networks

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Title: Communication Between Quantum Networks
Author(s): Song, Xingchang
Contributor: University of Helsinki, Faculty of Science
Degree program: Master's Programme in Computer Science
Specialisation: Networks
Language: English
Acceptance year: 2022
Quantum networking is developing fast as an emerging research field. Distributing entangled qubits between any two locations in a quantum network is one of the goals of quantum networking, in which repeaters can be used to extend the length of entanglement. Although researchers focus extensively on problems inside one quantum network, further study on communication between quantum networks is necessary because the next possible evolution of quantum networking is the communication between two or more autonomous quantum networks. In this thesis, we adapted a time slotted model from the literature to study the inter quantum network routing problem. Quantum routing problem can be split into path selection and request scheduling. We focus on the latter considering the previous one received considerable interest in the literature. Five request scheduling policies are proposed to study the impact of preference for certain request types on entanglement generation rate. Experiments also demonstrate other factors should be considered in context of entanglement rate in communication between quantum networks, e.g., the number and distribution of requests and inter-network distance.
Keyword(s): Quantum Networking Quantum Routing Request Scheduling

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