Bell Inequalities Tailored to Maximally Entangled States

被引：54

作者：

Salavrakos, Alexia ^{[1
]}

Augusiak, Remigiusz ^{[2
]}

Tura, Jordi ^{[1
,3
]}

Wittek, Peter ^{[1
,4
]}

Acin, Antonio ^{[1
,5
]}

Pironio, Stefano ^{[6
]}

机构：

[1] Barcelona Inst Sci & Technol, ICFO Inst Ciencies Foton, Barcelona 08860, Spain

[2] Polish Acad Sci, Ctr Theoret Phys, Aleja Lotnikow 32-46, PL-02668 Warsaw, Poland

[3] Max Planck Inst Quantum Opt, Hans Kopfermann Str 1, D-85748 Garching, Germany

[4] Univ Boras, Allegatan 1, S-50190 Boras, Sweden

[5] ICREA Inst Catalana Recerca & Estudis Avancats, E-08010 Barcelona, Spain

[6] ULB, Lab Informat Quant, CP 224, B-1050 Brussels, Belgium

来源：

PHYSICAL REVIEW LETTERS | 2017年 / 119卷 / 04期

关键词：

QUANTUM CORRELATIONS; NONLOCALITY; PRINCIPLE;

D O I：

10.1103/PhysRevLett.119.040402

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Bell inequalities have traditionally been used to demonstrate that quantum theory is nonlocal, in the sense that there exist correlations generated from composite quantum states that cannot be explained by means of local hidden variables. With the advent of device-independent quantum information protocols, Bell inequalities have gained an additional role as certificates of relevant quantum properties. In this work, we consider the problem of designing Bell inequalities that are tailored to detect maximally entangled states. We introduce a class of Bell inequalities valid for an arbitrary number of measurements and results, derive analytically their tight classical, nonsignaling, and quantum bounds and prove that the latter is attained by maximally entangled states. Our inequalities can therefore find an application in device-independent protocols requiring maximally entangled states.

引用

页数：6

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