Distributed Quantum Computation via Relayed Entanglement
Jincheng Zhang
Abstract
This paper explores a novel approach to distributed quantum computation – utilizing relayed entanglement – to circumvent the limitations imposed by long-distance entanglement distribution. Direct quantum communication suffers from the exponential decay of signal fidelity over extended distances, making entanglement creation and distribution across vast networks prohibitively difficult. This work proposes a network architecture leveraging intermediate nodes, acting as relays, to facilitate the transfer of entanglement. The core concept involves creating entangled pairs locally and then relaying them through the network, effectively extending the range of quantum computation without the need for direct, long-distance entanglement. We present a theoretical framework outlining the key components and considerations for such a system, including entanglement generation, relay protocols, and error mitigation strategies. This approach offers a viable pathway towards scalable distributed quantum computation, addressing a critical bottleneck in the development of practical quantum networks. The system is designed to improve the fidelity of quantum operations performed across geographically dispersed qubits. The presented model provides a foundational understanding for future research and development in this area.