Long-distance entanglement generation with scalable and robust two-dimensional quantum network

TL;DR

This paper proposes a scalable protocol for long-distance entanglement in 2D quantum networks using surface codes, tolerating realistic error rates and requiring minimal quantum memories per node.

Contribution

It introduces a novel protocol leveraging surface error-correction codes for robust, scalable entanglement distribution in 2D quantum networks with fixed quantum memory requirements.

Findings

Supports error rates up to 1.67% in quantum channels

Requires a fixed number of quantum memories per network node

Enables long-distance entanglement with high fidelity

Abstract

We present a protocol for generating entanglement over long distances in a two-dimensional quantum network based on the surface error-correction code. This protocol requires a fixed number of quantum memories at each node of the network and tolerates error rates of up to 1.67% in the quantum channels.