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arXiv 2212.06976quant-ph
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将语境相关性扩展到干扰系统的不可能性定理

Contextuality analysis of disturbing data cannot preserve core Kochen-Specker principles

University of São Paulo(圣保罗大学);Perimeter Institute for Theoretical Physics(圆周理论物理研究所);University of Colorado(科罗拉多大学)

Alisson Tezzin, Elie Wolfe, Barbara Amaral, Matt Jones

AI总结:

针对将语境相关性定义扩展到干扰系统的尝试,研究证明其无法同时满足确定性系统非语境相关、丢弃信息不改变非语境相关性等四条原则,且在更强版本的原则1下无需原则4也能得出相同结论。

摘要:

近期,将语境相关性定义扩展到存在干扰的系统方面出现了诸多关注与进展。我们证明,此类尝试无法同时满足以下原则:(1)任何确定性系统均为非语境相关;(2)丢弃信息无法将非语境相关系统转变为语境相关系统;(3)经典后处理无法产生语境相关性;(4)两个统计独立的非语境相关系统的联合实现为非语境相关。我们还证明,在原则1的更强版本下,无需原则4也能得到相同结果。

英文摘要:

We address the challenge of extending the criterion for Kochen-Specker contextuality to data with disturbance, to accommodate experimental imperfections or applications to macroscopic settings beyond quantum physics. We find that any such extension must abandon one or more principles that are core to the concept of contextuality. Specifically, we prove that no extended criterion agreeing with Kochen-Specker contextuality in the absence of disturbance can simultaneously satisfy the following: (1) any deterministic system is noncontextual; (2) discarding information cannot turn a noncontextual system into a contextual one; (3) classical post-processing cannot create contextuality; and (4) the joint realization of two statistically independent noncontextual systems is noncontextual. From the standpoint of resource theories, the obstruction arises because free operations can turn noncontextual disturbing behaviors into contextual non-disturbing ones. We suggest that future work on extended contextuality needs to move beyond the standard model-independent framework and account for the causal structure responsible for disturbance.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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