# TSIRELSON'S PROBLEM AND KIRCHBERG'S CONJECTURE

@article{Fritz2012TSIRELSONSPA,
title={TSIRELSON'S PROBLEM AND KIRCHBERG'S CONJECTURE},
author={Tobias Fritz},
journal={Reviews in Mathematical Physics},
year={2012},
volume={24},
pages={1250012}
}
• T. Fritz
• Published 6 August 2010
• Mathematics
• Reviews in Mathematical Physics
Tsirelson's problem asks whether the set of nonlocal quantum correlations with a tensor product structure for the Hilbert space coincides with the one where only commutativity between observables located at different sites is assumed. Here it is shown that Kirchberg's QWEP conjecture on tensor products of C*-algebras would imply a positive answer to this question for all bipartite scenarios. This remains true also if one considers not only spatial correlations, but also spatiotemporal…

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