Coherent activation of a steerability-breaking channel

Huan Yu Ku, Kuan Yi Lee, Po Rong Lai, Jhen Dong Lin, Yueh Nan Chen

研究成果: 雜誌貢獻期刊論文同行評審

2 引文 斯高帕斯(Scopus)

摘要

The inevitable noise within one-sided device-independent quantum information tasks may completely break any steering resources. These noisy effects are characterized by the steerability breaking (SB) channels. In this work, we demonstrate the use of a control system that can superpose N copies of the given SB channel to activate SB channels such that the channel becomes a non-SB one. In particular, we analytically and numerically show that the SB depolarizing and amplitude-damping channel can be coherently activated when N≥2. In addition, for both cases, the channels can preserve more steerability when increasing N. Finally, we propose circuit models to implement our proposed approaches and present the simulation results.

原文英語
文章編號042415
期刊Physical Review A
107
發行號4
DOIs
出版狀態已發佈 - 2023 4月
對外發佈

ASJC Scopus subject areas

  • 原子與分子物理與光學

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