Generalized Bell Scenarios: Disturbing Consequences on Local-Hidden-Variable Models

被引：1

作者：

Mazzari, Andre ^{[1
]}

Ruffolo, Gabriel ^{[1
]}

Vieira, Carlos ^{[2
,3
]}

Temistocles, Tassius ^{[1
,2
,4
,5
]}

Rabelo, Rafael ^{[1
]}

Terra Cunha, Marcelo ^{[2
,4
]}

机构：

[1] Univ Estadual Campinas Unicamp, Inst Fis Gleb Wataghin, BR-13083859 Campinas, Brazil

[2] Univ Estadual Campinas Unicamp, Inst Matemat Estat & Computacao Cient, BR-13083859 Campinas, Brazil

[3] Univ Hong Kong, Dept Comp Sci, Pokfulam Rd, Hong Kong, Peoples R China

[4] Univ Fed Minas Gerais, Dept Fis, Inst Ciencias Exatas, BR-30123970 Belo Horizonte, Brazil

[5] Inst Fed Alagoas Campus Penedo, Rod Eng Joaquim Gonçalves Dom Constantino, BR-57200000 Penedo, Brazil

来源：

ENTROPY | 2023年 / 25卷 / 09期

基金：

巴西圣保罗研究基金会;

关键词：

Bell nonlocality; contextuality; generalized Bell scenarios;

D O I：

10.3390/e25091276

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Bell nonlocality and Kochen-Specker contextuality are among the main topics in the foundations of quantum theory. Both of them are related to stronger-than-classical correlations, with the former usually referring to spatially separated systems, while the latter considers a single system. In recent works, a unified framework for these phenomena was presented. This article reviews, expands, and obtains new results regarding this framework. Contextual and disturbing features inside the local models are explored, which allows for the definition of different local sets with a non-trivial relation among them. The relations between the set of quantum correlations and these local sets are also considered, and post-quantum local behaviours are found. Moreover, examples of correlations that are both local and non-contextual but such that these two classical features cannot be expressed by the same hidden variable model are shown. Extensions of the Fine-Abramsky-Brandenburger theorem are also discussed.

引用

页数：21

共 29 条

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