Electric-Field Programmable Spin Arrays for Scalable Quantum Repeaters

TL;DR

This paper introduces an electric-field programmable spin array architecture for quantum repeaters, enabling scalable, low-power, high-speed control of dense quantum emitters with improved entanglement rates for quantum networks.

Contribution

The paper presents a novel programmable electrode array for quantum emitters that reduces power and cross-talk, enhancing scalability and performance in quantum repeater architectures.

Findings

Increased entanglement generation rate into thousands of qubits.

Low cross-talk and power dissipation in spin control.

Enhanced scalability of quantum network control.

Abstract

Large scale control over thousands of quantum emitters desired by quantum network technology is limited by power consumption and cross-talk inherent in current microwave techniques. Here we propose a quantum repeater architecture based on densely-packed diamond color centers (CCs) in a programmable electrode array. This 'electric-field programmable spin array' (eFPSA) enables high-speed spin control of individual CCs with low cross-talk and power dissipation. Integrated in a slow-light waveguide for efficient optical coupling, the eFPSA serves as a quantum interface for optically-mediated entanglement. We evaluate the performance of the eFPSA architecture in comparison to a routing tree design and show increased entanglement generation rate into thousands of qubits regime. Our results enable high fidelity control of dense quantum emitter arrays for scalable networking.