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CV_Quantum_Switch_or_Router-1.pdf
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Final Accepted Manuscript
Affiliation
University of Arizona, College of Optical SciencesIssue Date
2022-09Keywords
entanglement distributionmaximum weight scheduling
quantum continuous variables
quantum repeater
quantum switch
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IEEECitation
Tillman, I., Vasantam, T., & Seshadreesan, K. P. (2022). A Continuous Variable Quantum Switch. Proceedings - 2022 IEEE International Conference on Quantum Computing and Engineering, QCE 2022, 365–371.Journal
Proceedings - 2022 IEEE International Conference on Quantum Computing and Engineering, QCE 2022Rights
© 2022 IEEE.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
The continuous quadratures of a single mode of the light field present a promising avenue to encode quantum information. By virtue of the infinite dimensionality of the associated Hilbert space, quantum states of these continuous variables (CV) can enable higher communication rates compared to single photon-based qubit encodings. Quantum repeater protocols that are essential to extend the range of quantum communications at enhanced rates over direct transmission have also been recently proposed for CV quantum encodings. Here we present a quantum repeating switch for CV quantum encodings that caters to multiple communication flows. The architecture of the switch is based on quantum light sources, detectors, memories, and switching fabric, and the routing protocol is based on a Max-Weight scheduling policy that is throughput optimal. We present numerical results on an achievable bipartite entanglement request rate region for multiple CV entanglement flows that can be stably supported through the switch. We elucidate our results with the help of exemplary 3-flow networks.Note
Immediate accessVersion
Final accepted manuscriptae974a485f413a2113503eed53cd6c53
10.1109/qce53715.2022.00057