摘要
Quantum steering is a central resource for one-sided device-independent quantum information. It is manipulated via one-way local operations and classical communication, such as local filtering on the trusted party. Here, we provide a necessary and sufficient condition for a steering assemblage to be transformable into another via local filtering. We characterize the equivalence classes with respect to filters in terms of the steering equivalent observables (SEO), first proposed to connect the problem of steerability and measurement incompatibility. We provide an efficient method to compute the extractable steerability that is maximal via local filters and show that it coincides with the incompatibility of the SEO. Moreover, we show that there always exists a bipartite state that provides an assemblage with steerability equal to the incompatibility of the measurements on the untrusted party. Finally, we investigate the optimal success probability and rates for transformation protocols (distillation and dilution) in the single-shot scenario together with examples.
原文 | English |
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文章編號 | 4973 |
期刊 | Nature communications |
卷 | 13 |
發行號 | 1 |
DOIs | |
出版狀態 | Published - 2022 12月 |
All Science Journal Classification (ASJC) codes
- 一般化學
- 一般生物化學,遺傳學和分子生物學
- 一般物理與天文學