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arXiv · 1005.3380

Quantum Throughput: Quantifying quantum communication with homodyne measurements

Nathan Killoran·Hauke Häseler·Norbert Lütkenhaus
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Abstract

Quantum communication relies on optical implementations of channels, memories and repeaters. In the absence of perfect devices, a minimum requirement on real-world devices is that they preserve quantum correlations, meaning that they have some thoughput of a quantum mechanical nature. Previous work has verified throughput in optical devices while using minimal resources. We extend this approach to the quantitative regime. Our method is illustrated in a setting where the input consists of two coherent states while the output is measured by two homodyne measurement settings.

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Nathan Killoran, Hauke Häseler, Norbert Lütkenhaus. 2010-08-26. Quantum Throughput: Quantifying quantum communication with homodyne measurements. https://doi.org/10.1103/physreva.82.052331

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