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Characterization of a measurement-based noiseless linear amplifier and its applications

Zhao, Jie; Haw, Jing-Yan; Symul, Thomas; Lam, Ping; Assad, Syed


A noiseless linear amplifier (NLA) adds no noise to the signals it processes, which works only in a probabilistic way. It can be realized approximately with either a physical implementation that truncates the working space of the NLA on a photon-number basis or a measurement-based implementation that realizes the truncation virtually by a bounded postselection filter. To examine the relationship between these two approximate NLAs, we characterize in detail the measurement-based NLA and compare...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: Physical Review A - Atomic, Molecular, and Optical Physics
DOI: 10.1103/PhysRevA.96.012319


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