Continuous-variable entanglement distillation with noiseless linear amplification

Song Yang; Shengli Zhang; Xubo Zou; Siwen Bi; Xuling Lin

doi:10.1103/PhysRevA.86.062321

Continuous-variable entanglement distillation with noiseless linear amplification

Song Yang^*
, Shengli Zhang
, Xubo Zou
, Siwen Bi
, Xuling Lin

^*Corresponding author for this work

China Aerospace Science and Technology Corporation
University of Science and Technology of China

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

8 Citations (Scopus)

Abstract

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.

Original language	English
Article number	062321
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	86
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevA.86.062321
Publication status	Published - 20 Dec 2012
Externally published	Yes

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10.1103/PhysRevA.86.062321

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title = "Continuous-variable entanglement distillation with noiseless linear amplification",

abstract = "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.",

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AU - Bi, Siwen

AU - Lin, Xuling

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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.

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M3 - Article

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Continuous-variable entanglement distillation with noiseless linear amplification

Abstract

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