Requirements for a processing-node quantum repeater on a real-world fiber grid
| Autor: | Avis, Guus, da Silva, Francisco Ferreira, Coopmans, Tim, Dahlberg, Axel, Jirovská, Hana, Maier, David, Rabbie, Julian, Torres-Knoop, Ariana, Wehner, Stephanie |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | npj Quantum Inf 9, 100 (2023) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1038/s41534-023-00765-x |
| Popis: | We numerically study the distribution of entanglement between the Dutch cities of Delft and Eindhoven realized with a processing-node quantum repeater and determine minimal hardware requirements for verifiable blind quantum computation using color centers and trapped ions. Our results are obtained considering restrictions imposed by a real-world fiber grid and using detailed hardware-specific models. By comparing our results to those we would obtain in idealized settings we show that simplifications lead to a distorted picture of hardware demands, particularly on memory coherence and photon collection. We develop general machinery suitable for studying arbitrary processing-node repeater chains using NetSquid, a discrete-event simulator for quantum networks. This enables us to include time-dependent noise models and simulate repeater protocols with cut-offs, including the required classical control communication. We find minimal hardware requirements by solving an optimization problem using genetic algorithms on a high-performance-computing cluster. Our work provides guidance for further experimental progress, and showcases limitations of studying quantum-repeater requirements in idealized situations. Comment: Published version. 13 pages, 5 figures, 1 table + 52 pages, 15 figures, 6 tables appendix |
| Databáze: | arXiv |
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