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arXiv

A Continuous Variable Quantum Switch

作     者:Tillman, Ian Vasantam, Thirupathaiah Seshadreesan, Kaushik P. 

作者机构:College of Optical Sciences University of Arizona Tucson United States Department of Computer Science Durham University Durham United Kingdom Department of Informatics & Networked Systems School of Computing & Information University of Pittsburgh Pittsburgh United States 

出 版 物:《arXiv》 (arXiv)

年 卷 期:2022年

核心收录:

主  题:Scheduling 

摘      要: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. © 2022, CC BY-NC-ND.

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