Quantum Repeater Chains via Cavity Magnon for Scalable Quantum Networks

TL;DR

This paper proposes a cavity-magnon quantum repeater architecture that leverages magnonic platforms for scalable, efficient long-distance quantum communication, supported by numerical simulations demonstrating its viability and advantages.

Contribution

It introduces a novel cavity-magnon quantum repeater design that enhances scalability and integration for quantum networks, backed by comprehensive performance analysis.

Findings

Cavity-magnon systems enable efficient entanglement swapping.

Performance depends on system parameters and deployment scenarios.

The architecture shows promise for long-distance quantum communication.

Abstract

Scalable quantum networks require quantum repeaters to overcome major challenges such as photon loss and decoherence in long-distance quantum communication. In this paper, we present a cavity-magnon quantum repeater architecture that exploits the frequency tunability and coherence characteristics of magnonic platforms to enable efficient entanglement swapping across multi-hop networks. Through comprehensive numerical simulations with realistic experimental parameters, we analyze system performance across diverse deployment scenarios and network scales, examining both short-range and long-distance implementations. We identify critical factors influencing performance and scalability, demonstrating that cavity-magnon systems represent a viable and promising quantum repeater platform with significant integration advantages over existing quantum memory technologies.