@inproceedings{314deca388ff42c893e0c7f99f49409a,
title = "Quantum enhancement of signal-to-noise ratio for arbitrary coherent states using heralded linear amplifiers",
abstract = "We present an experimental enhancement of signal-to-noise ratio for arbitrary coherent states using a noise-reduced linear amplifier that profitably combines a heralded measurement-based noiseless linear amplifier and a deterministic linear amplifier. The concatenation of two amplifiers introduces the flexibility that allows one to reach the amplification with high gain for large input coherent amplitude. We demonstrate a signal transfer coefficient of Ts = 2.55 ± 0.08 from input to output, achieved with an amplification gain of 10.54. When Gaussian statistics is retained, our heralded amplifier obtained a signal transfer coefficient of Ts = 1.10 ± 0.04. Our amplification scheme only relies on linear optics and post-selection algorithm, and therefore would be of great usage in loss-sensitive quantum information protocols.",
keywords = "Continuous-variable, Quantum amplification",
author = "Jie Zhao and Josephine Dias and Haw, {Jing Yan} and Mark Bradshaw and Remi Blandino and Thomas Symul and Timothy Ralph and Syed Assad and Lam, {Ping Koy}",
note = "Publisher Copyright: {\textcopyright} 2017 Institute of Electrical and Electronics Engineers Inc. All rights reserved.; 2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017 ; Conference date: 31-07-2017 Through 04-08-2017",
year = "2017",
month = nov,
day = "22",
doi = "10.1109/CLEOPR.2017.8119041",
language = "English",
series = "2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1--3",
booktitle = "2017 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2017",
address = "United States",
}