Minimum-cost aggregation of quantum repeaters

Koji Azuma

doi:10.1117/12.2677840

4 October 2023 Minimum-cost aggregation of quantum repeaters

Koji Azuma

Proceedings Volume PC12692, Quantum Communications and Quantum Imaging XXI; PC1269204 (2023) https://doi.org/10.1117/12.2677840
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

A quantum internet holds promise for accomplishing distributed quantum sensing and large-scale quantum computer networks, as well as quantum communication among arbitrary clients all over the globe. The main building block is efficient distribution of entanglement over a quantum network. This could be achieved by aggregating quantum repeater protocols. However, the existing protocol requires point-to-point entanglement generation not only to suppress the error, depending on the size of the whole network, but also to be run more than necessary. Here we present an aggregated quantum repeater protocol which works with minimum cost. We also introduce the concept of concatenation of it to achieve arbitrary long-distance communication with fixed error over the network, independently of its size.

Conference Presentation

Citation Download Citation

Koji Azuma "Minimum-cost aggregation of quantum repeaters", Proc. SPIE PC12692, Quantum Communications and Quantum Imaging XXI, PC1269204 (4 October 2023); https://doi.org/10.1117/12.2677840

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