Protecting single-photon entangled state from photon loss with noiseless linear amplification

Shengli Zhang; Song Yang; Xubo Zou; Baosen Shi; Guangcan Guo

doi:10.1103/PhysRevA.86.034302

Protecting single-photon entangled state from photon loss with noiseless linear amplification

Shengli Zhang^*
, Song Yang
, Xubo Zou
, Baosen Shi
, Guangcan Guo

^*Corresponding author for this work

Information Engineering University
University of Science and Technology of China

Research output: Contribution to journal › Article › peer-review

43 Citations (Scopus)

Abstract

Single-photon entanglement provides a valuable resource for quantum communication and quantum repeaters. However, single-photon entanglement is sensitive to photon loss. In this Brief Report, we show that a noiseless linear amplifier is an efficient tool for protecting single-photon entanglement. The performance of ideal noiseless linear amplification as well as the nonideal amplification with on-off detectors and heralded single photons are also investigated.

Original language	English
Article number	034302
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	86
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevA.86.034302
Publication status	Published - 4 Sept 2012
Externally published	Yes

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10.1103/PhysRevA.86.034302

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AB - Single-photon entanglement provides a valuable resource for quantum communication and quantum repeaters. However, single-photon entanglement is sensitive to photon loss. In this Brief Report, we show that a noiseless linear amplifier is an efficient tool for protecting single-photon entanglement. The performance of ideal noiseless linear amplification as well as the nonideal amplification with on-off detectors and heralded single photons are also investigated.

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M3 - Article

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Protecting single-photon entangled state from photon loss with noiseless linear amplification

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