State-Independent Quantum Contextuality with Single Photons

被引：187

作者：

Amselem, Elias ^{[1
]}

Radmark, Magnus ^{[1
]}

Bourennane, Mohamed ^{[1
]}

Cabello, Adan ^{[2
]}

机构：

[1] Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden

[2] Univ Seville, Dept Fis Aplicada 2, E-41012 Seville, Spain

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 16期

基金：

瑞典研究理事会;

关键词：

KOCHEN-SPECKER THEOREM; MECHANICAL DESCRIPTION; BELL INEQUALITIES; HIDDEN VARIABLES; PHYSICAL REALITY; VIOLATION; SEPARABILITY; PARTICLE;

D O I：

10.1103/PhysRevLett.103.160405

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present an experimental state-independent violation of an inequality for noncontextual theories on single particles. We show that 20 different single-photon states violate an inequality which involves correlations between results of sequential compatible measurements by at least 419 standard deviations. Our results show that, for any physical system, even for a single system, and independent of its state, there is a universal set of tests whose results do not admit a noncontextual interpretation. This sheds new light on the role of quantum mechanics in quantum information processing.

引用

页数：4

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