AIP conference proceedings

Quantum throughput: Estimating the quantumness of optical devices using homodyne measurements

Nathan Killoran, Hauke Häseler, Norbert Lütkenhaus, Timothy C. Ralph, Ping Koy Lam

Published Jan 1, 2011• 0 citations

Abstract

New quantum optical devices such as quantum repeaters, quantum memories, and quantum channels are important components in quantum communication technologies. We outline a method for characterizing such devices via their capacity to preserve entanglement, or quantum throughput. Using minimal experimental resources, we can quantify the entanglement which remains in a test state after interaction with an optical device. Our method provides good estimates in the low‐noise regime.

DOI: 10.1063/1.3630182

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