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Hardware requirements for realizing a quantum advantage with deterministic single-photon sources
Preprint   Open access

Hardware requirements for realizing a quantum advantage with deterministic single-photon sources

Patrik I Sund, Ravitej Uppu, Stefano Paesani and Peter Lodahl
arXiv.org
Cornell University
10/16/2023
DOI: 10.48550/arxiv.2310.10185
url
https://doi.org/10.48550/arxiv.2310.10185View
Preprint (Author's original)This preprint has not been evaluated by subject experts through peer review. Preprints may undergo extensive changes and/or become peer-reviewed journal articles. Open Access

Abstract

Boson sampling is a specialised algorithm native to the quantum photonic platform developed for near-term demonstrations of quantum advantage over classical computers. While clear useful applications for such near-term pre-fault-tolerance devices are not currently known, reaching a quantum advantage regime serves as a useful benchmark for the hardware. Here, we analyse and detail hardware requirements needed to reach quantum advantage with deterministic quantum emitters, a promising platform for photonic quantum computing. We elucidate key steps that can be taken in experiments to overcome practical constraints and establish quantitative hardware-level requirements. We find that quantum advantage is within reach using quantum emitters with an efficiency of 60%-70% and interferometers constructed according to a hybrid-mode-encoding architecture, constituted of Mach-Zehnder interferometers with an insertion loss of 0.0035 (a transmittance of 99.92%) per component.
Physics - Quantum Physics

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