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研究揭示量子非定域性的分层激活现象
作者:小柯机器人 发布时间:2023/5/30 10:09:59

近日,印度统计研究所的Tathagata Gupta与香港大学的Tamal Guha以及印度Bose研究所的Amit Mukherjee等人合作并取得一项新进展。他们成功揭示了量子非定域性的分层激活现象。相关研究成果已于2023年5月23日在国际知名学术期刊《物理评论A》上发表。

在这项研究中,研究人员引入了更强的量子非局域性概念,并描述了从非平凡的局部可区分纠缠态集合中激活的一系列分层非局域性现象。此外,他们对先前文献中引入的非平凡性严格条件进行了适当的调整,并提供了一些有趣的示例来支持他们的观点。

据悉,在有限测量环境中,量子态分辨的问题变得非常复杂,引发了不同类型的不可能性,如无法区分性、不可标记性、不可约性等。这些现象通常被称为量子理论的另一个非局域方面,在数据隐藏、秘密共享等领域具有极其重要的意义。受到这一动机的驱使,最近人们致力于从局部可区分的非平凡量子态集合中激活局部不可区分性。

附:英文原文

Title: Hierarchical activation of quantum nonlocality: Stronger than local indistinguishability

Author: Tathagata Gupta, Subhendu B. Ghosh, Ardra A V, Anandamay Das Bhowmik, Sutapa Saha, Tamal Guha, Ramij Rahaman, Amit Mukherjee

Issue&Volume: 2023/05/23

Abstract: The quantum state discrimination primitive becomes highly nontrivial in the limited measurement setting and leads to different classes of impossibility, viz., indistinguishability, unmarkability, irreducibility, etc. These phenomena, often referred to as another nonlocal aspect of quantum theory, have utmost importance in the domain of data hiding, secret sharing, etc. Motivated by this, recently a significant effort has been devoted to activate local indistinguishability from locally distinguishable nontrivial sets of quantum states. In the present work, we introduce other stronger notions of quantum nonlocality and depict a series of hierarchical nonlocality activation from nontrivial sets of locally distinguishable entangled states. Moreover, we appropriately moderate the strict condition of nontriviality, introduced in earlier literature, and come up with interesting examples in support of our claim.

DOI: 10.1103/PhysRevA.107.052418

Source: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.107.052418

期刊信息

Physical Review A:《物理评论A》,创刊于1970年。隶属于美国物理学会,最新IF:2.97
官方网址:https://journals.aps.org/pra/
投稿链接:https://authors.aps.org/Submissions/login/new