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Field programmable spin arrays for scalable quantum repeaters.

ABSTRACT: The large scale control over thousands of quantum emitters desired by quantum network technology is limited by the 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, with quantum gates driven by electric or strain fields. This 'field programmable spin array' (FPSA) 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 FPSA serves as a quantum interface for optically-mediated entanglement. We evaluate the performance of the FPSA architecture in comparison to a routing-tree design and show an increased entanglement generation rate scaling into the thousand-qubit regime. Our results enable high fidelity control of dense quantum emitter arrays for scalable networking.

SUBMITTER: Wang H

PROVIDER: S-EPMC9911411 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature

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Field programmable spin arrays for scalable quantum repeaters.

Wang Hanfeng H Trusheim Matthew E ME Kim Laura L Raniwala Hamza H Englund Dirk R DR

Nature communications 20230209 1

The large scale control over thousands of quantum emitters desired by quantum network technology is limited by the 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, with quantum gates driven by electric or strain fields. This 'field programmable spin array' (FPSA) enables high-speed spin control of individual CCs with low cross-talk and p ...[more]

PMID: 36759601

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