TY - JOUR
T1 - Protecting single-photon entangled state from photon loss with noiseless linear amplification
AU - Zhang, Shengli
AU - Yang, Song
AU - Zou, Xubo
AU - Shi, Baosen
AU - Guo, Guangcan
PY - 2012/9/4
Y1 - 2012/9/4
N2 - 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.
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.
UR - http://www.scopus.com/inward/record.url?scp=84865731957&partnerID=8YFLogxK
U2 - 10.1103/PhysRevA.86.034302
DO - 10.1103/PhysRevA.86.034302
M3 - Article
AN - SCOPUS:84865731957
SN - 1050-2947
VL - 86
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 3
M1 - 034302
ER -