TY - JOUR
T1 - Continuous-variable entanglement distillation with noiseless linear amplification
AU - Yang, Song
AU - Zhang, Shengli
AU - Zou, Xubo
AU - Bi, Siwen
AU - Lin, Xuling
PY - 2012/12/20
Y1 - 2012/12/20
N2 - Quantum entanglement distillation is a probabilistic process which protects entanglement from environment-induced decoherence. In this paper, we investigate the distillation of a continuousvariable optic entangled state with noiseless linear amplification (NLA). NLA schemes perform better than the conventional photon-subtraction-based distillation scheme, particularly in distributing entanglement over extremely low efficiency quantum channels. Finally, a comparison between the NLA-based scheme and the local squeezing-enhanced photon subtraction scheme is also investigated.
AB - Quantum entanglement distillation is a probabilistic process which protects entanglement from environment-induced decoherence. In this paper, we investigate the distillation of a continuousvariable optic entangled state with noiseless linear amplification (NLA). NLA schemes perform better than the conventional photon-subtraction-based distillation scheme, particularly in distributing entanglement over extremely low efficiency quantum channels. Finally, a comparison between the NLA-based scheme and the local squeezing-enhanced photon subtraction scheme is also investigated.
UR - https://www.scopus.com/pages/publications/84871604853
U2 - 10.1103/PhysRevA.86.062321
DO - 10.1103/PhysRevA.86.062321
M3 - Article
AN - SCOPUS:84871604853
SN - 1050-2947
VL - 86
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 6
M1 - 062321
ER -