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 |
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文章編號 | 042415 |
期刊 | Physical Review A |
卷 | 107 |
發行號 | 4 |
DOIs | |
出版狀態 | 已發佈 - 2023 4月 |
對外發佈 | 是 |
ASJC Scopus subject areas
- 原子與分子物理與光學