贝尔-CCH 不等式和单元算子

IF 2.5 3区物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS

Nuclear Physics B Pub Date : 2024-10-16 DOI:10.1016/j.nuclphysb.2024.116717

M.S. Guimaraes , I. Roditi , S.P. Sorella

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引用次数: 0

摘要

利用单元算子来研究违反贝尔-CHSH 不等式的情况。随之而来的影响经典和量子边界的修正也得到了阐明。还指出了期望值为实的一类特殊单元算子的相关性。对于这些算子，经典界值和量子界值保持不变，分别为 2 和 22。作为例子，我们讨论了相空间贝尔-CHSH 不等式违反的显式实现，以及相对论量子场论中实标量场的韦尔单元算子。

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Bell-CHSH inequality and unitary operators

Unitary operators are employed to investigate the violation of the Bell-CHSH inequality. The ensuing modifications affecting both classical and quantum bounds are elucidated. The relevance of a particular class of unitary operators whose expectation values are real is pointed out. For these operators, the classical and quantum bounds remain unaltered, being given, respectively, by 2 and

2 \sqrt{2}

. As examples, we discuss the explicit realization of phase space Bell-CHSH inequality violation and the Weyl unitary operators for a real scalar field in relativistic Quantum Field Theory.

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来源期刊

Nuclear Physics B 物理-物理：粒子与场物理

CiteScore

5.50

自引率

7.10%

发文量

302

审稿时长

1 months

期刊介绍： Nuclear Physics B focuses on the domain of high energy physics, quantum field theory, statistical systems, and mathematical physics, and includes four main sections: high energy physics - phenomenology, high energy physics - theory, high energy physics - experiment, and quantum field theory, statistical systems, and mathematical physics. The emphasis is on original research papers (Frontiers Articles or Full Length Articles), but Review Articles are also welcome.