English

A framework for the study of symmetric full-correlation Bell-like inequalities

Quantum Physics 2012-03-07 v1

Abstract

Full-correlation Bell-like inequalities represent an important subclass of Bell-like inequalities that have found applications in both a better understanding of fundamental physics and in quantum information science. Loosely speaking, these are inequalities where only measurement statistics involving all parties play a role. In this paper, we provide a framework for the study of a large family of such inequalities that are symmetrical with respect to arbitrary permutations of the parties. As an illustration of the power of our framework, we derive (i) a new family of Svetlichny inequalities for arbitrary numbers of parties, settings and outcomes, (ii) a new family of two-outcome device-independent entanglement witnesses for genuine n-partite entanglement and (iii) a new family of two-outcome Tsirelson inequalities for arbitrary numbers of parties and settings. We also discuss briefly the application of these new inequalities in the characterization of quantum correlations.

Keywords

Cite

@article{arxiv.1201.2055,
  title  = {A framework for the study of symmetric full-correlation Bell-like inequalities},
  author = {Jean-Daniel Bancal and Cyril Branciard and Nicolas Brunner and Nicolas Gisin and Yeong-Cherng Liang},
  journal= {arXiv preprint arXiv:1201.2055},
  year   = {2012}
}

Comments

9 pages, 1 figure