严格非相干操作下的概率相干变换

IF 2.3 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Physics Letters A Pub Date : 2025-06-11 DOI:10.1016/j.physleta.2025.130739

Ao-Xiang Liu , Cong-Feng Qiao

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引用次数: 0

摘要

研究了在多数格上严格非相干操作下的概率相干变换。为此，将贪婪协议和节俭协议应用于概率相干变换，后者在平均保持相干性方面表现出一定的优势。我们通过展示最优公共资源状态在距离度量方面的自然解释，提供了对最优公共资源状态的新见解，并形式化了以相干转换的成功概率损失为代价来实现大相干增益的直觉，反之亦然。总的来说，这些结果证明了这两种协议的最优性。此外，还探讨了两种混合状态之间的确定性和概率相干变换。作为一个应用，证明了从相干到纠缠的转换可以受益于概率相干变换。

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Probabilistic coherence transformation under strictly incoherent operation

We investigate the probabilistic coherence transformation under strictly incoherent operations on majorization lattice. To this end, the greedy and thrifty protocols are adapted for the probabilistic coherence transformation, of which the latter exhibits certain superiority in preserving coherence on average. We provide new insight into optimal common resource state by showing its natural interpretations in terms of distance measure, and formalize the intuition that the large coherence gain can be realized with the price of success probability loss for coherence transformation, and vice versa. Collectively, these results justify the optimality of the two protocols. Additionally, deterministic and probabilistic coherence transformations between two mixed states are explored. As an application, it is shown that the conversion from coherence into entanglement may benefit from probabilistic coherence transformation.

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来源期刊

Physics Letters A 物理-物理：综合

CiteScore

5.10

自引率

3.80%

发文量

493

审稿时长

30 days

期刊介绍： Physics Letters A offers an exciting publication outlet for novel and frontier physics. It encourages the submission of new research on: condensed matter physics, theoretical physics, nonlinear science, statistical physics, mathematical and computational physics, general and cross-disciplinary physics (including foundations), atomic, molecular and cluster physics, plasma and fluid physics, optical physics, biological physics and nanoscience. No articles on High Energy and Nuclear Physics are published in Physics Letters A. The journal''s high standard and wide dissemination ensures a broad readership amongst the physics community. Rapid publication times and flexible length restrictions give Physics Letters A the edge over other journals in the field.