Bell nonlocality in networks

A Tavakoli, A Pozas-Kerstjens, MX Luo… - Reports on Progress in …, 2022 - iopscience.iop.org
Bell's theorem proves that quantum theory is inconsistent with local physical models. It has
propelled research in the foundations of quantum theory and quantum information science …

Semidefinite programming relaxations for quantum correlations

A Tavakoli, A Pozas-Kerstjens, P Brown… - Reviews of Modern Physics, 2024 - APS
Semidefinite programs are convex optimization problems involving a linear objective
function and a domain of positive-semidefinite matrices. Over the past two decades, they …

Self-testing of quantum systems: a review

I Šupić, J Bowles - Quantum, 2020 - quantum-journal.org
Self-testing is a method to infer the underlying physics of a quantum experiment in a black
box scenario. As such it represents the strongest form of certification for quantum systems. In …

Bell nonlocality

N Brunner, D Cavalcanti, S Pironio, V Scarani… - Reviews of modern …, 2014 - APS
Bell's 1964 theorem, which states that the predictions of quantum theory cannot be
accounted for by any local theory, represents one of the most profound developments in the …

Genuine quantum nonlocality in the triangle network

MO Renou, E Bäumer, S Boreiri, N Brunner, N Gisin… - Physical review …, 2019 - APS
Quantum networks allow in principle for completely novel forms of quantum correlations. In
particular, quantum nonlocality can be demonstrated here without the need of having …

The lesson of causal discovery algorithms for quantum correlations: causal explanations of Bell-inequality violations require fine-tuning

CJ Wood, RW Spekkens - New Journal of Physics, 2015 - iopscience.iop.org
An active area of research in the fields of machine learning and statistics is the development
of causal discovery algorithms, the purpose of which is to infer the causal relations that hold …

Full network nonlocality

A Pozas-Kerstjens, N Gisin, A Tavakoli - Physical review letters, 2022 - APS
Networks have advanced the study of nonlocality beyond Bell's theorem. Here, we introduce
the concept of full network nonlocality, which describes correlations that necessitate all links …

Beyond Bell's theorem: correlation scenarios

T Fritz - New Journal of Physics, 2012 - iopscience.iop.org
Bell's theorem witnesses that the predictions of quantum theory cannot be reproduced by
theories of local hidden variables in which observers can choose their measurements …

The inflation technique for causal inference with latent variables

E Wolfe, RW Spekkens, T Fritz - Journal of Causal Inference, 2019 - degruyter.com
The problem of causal inference is to determine if a given probability distribution on
observed variables is compatible with some causal structure. The difficult case is when the …

Theory-independent limits on correlations from generalized Bayesian networks

J Henson, R Lal, MF Pusey - New Journal of Physics, 2014 - iopscience.iop.org
Bayesian networks provide a powerful tool for reasoning about probabilistic causation, used
in many areas of science. They are, however, intrinsically classical. In particular, Bayesian …