Decentralized Framework for Teleportation in Quantum Core Interconnects

TL;DR

This paper proposes a decentralized quantum teleportation framework for multi-core quantum systems, significantly reducing communication latency and circuit depth, thereby enhancing scalability and performance of large-scale quantum architectures.

Contribution

It introduces two variants of decentralized teleportation, with the optimized two-way method demonstrating substantial improvements over traditional centralized approaches.

Findings

40% reduction in communication latency for synthetic benchmarks

30% reduction in latency for real applications

24% decrease in quantum circuit depth

Abstract

Multi-core quantum computing architectures offer a promising and scalable solution to the challenges of integrating large number of qubits into existing monolithic chip design. However, the issue of transferring quantum information across the cores remains unresolved. Quantum Teleportation offers a potential approach for efficient qubit transfer, but existing methods primarily rely on centralized interconnection mechanisms for teleportation, which may limit scalability and parallel communication. We proposes a decentralized framework for teleportation in multi-core quantum computing systems, aiming to address these limitations. We introduce two variants of teleportation within the decentralized framework and evaluate their impact on reducing end-to-end communication delay and quantum circuit depth. Our findings demonstrate that the optimized teleportation strategy, termed two-way teleportation, results in a substantial 40% reduction in end-to-end communication latency for synthetic benchmarks and a 30% reduction for real benchmark applications, and 24% decrease in circuit depth compared to the baseline teleportation strategy. These results highlight the significant potential of decentralized teleportation to improve the performance of large-scale quantum systems, offering a scalable and efficient solution for future quantum architectures.