Distributed Transport Protocols for Quantum Data Networks
Distributed Transport Protocols for Quantum Data Networks
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DOI：
10.1109/tnet.2023.3262547
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发表时间：
2023-12
期刊：
影响因子：
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通讯作者：
Yangming Zhao;C. Qiao
中科院分区：
文献类型：
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作者：
Yangming Zhao;C. Qiao
量子计算具有很大的前景，这项工作提出使用新的量子数据网络（qdn）连接多个小型量子计算机形成集群。这种QDN不同于现有的量子密钥分发（QKD）网络，因为前者必须在不同的量子计算机之间可靠地传递数据量子比特（即量子位）。本文研究了两类qdn，一类是使用隐形传态的，称为Tele-QDN，另一类是使用TAG （tel -and-go）的，称为TAG- qdn。为了提供可靠的数据量子比特传输，同时解决量子dn特定于量子物理定律的约束，如不可克隆定理和量子存储器的有限可用性，设计和评估了适合分布式实现的两个相应的传输层协议。这种分布式量子传输协议（dtp），被称为Tele-DTP和TAG-DTP，是同类协议中的第一个，是对网络层及以下的qdn协议栈现有工作的补充。分析和大量的仿真结果表明，所提出的dtp具有较高的吞吐量和公平性。这项研究还为使用不同类型的qdn所涉及的潜在权衡提供了新的见解。
Quantum computing holds great promise and this work proposes to use new quantum data networks (QDNs) to connect multiple small quantum computers to form a cluster. Such a QDN differs from existing quantum key distribution (QKD) networks in that the former must deliver data quantum bits (i.e., qubits) reliably between different quantum computers. Two families of QDNs are studied, one using teleportation, named Tele-QDN, and the other using tell-and-go (TAG), named TAG-QDN. In order to provide reliable delivery of data qubits, while addressing QDN-specific constraints imposed by quantum physics laws such as the no-cloning theorem, and limited availability of quantum memory, two corresponding transport layer protocols suitable for distributed implementation are designed and evaluated. Such distributed quantum transport protocols (DTPs), named Tele-DTP and TAG-DTP, are the first-of-its-kind and are complementary to existing works on the protocol stack for QDNs which are at the network layer and below. Both analysis and extensive simulations show that the proposed DTPs can achieve high throughput and fairness. This study also offers new insights into potential tradeoffs involved in using different types of QDNs.