Conjecture that inflation-NPA convergence yields commutator bilocality

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Let Q⃗={q(abc∣xyz)}\vec{Q}=\{q(abc|xyz)\} be a distribution in the bilocal scenario. Say that Q⃗\vec{Q} passes the bilocal inflation-NPA hierarchy when it satisfies the hierarchy of compatible inflation-NPA moment-matrix tests. Inflation-NPA factorisation conjecture. If Q⃗\vec{Q} passes the bilocal inflation-NPA hierarchy, then it passes the factorisation bilocal hierarchy and is therefore a commutator bilocal distribution. This conjecture concerns the asymptotic factorisation of inflation moment matrices and the resulting convergence of the inflation-NPA hierarchy; a formal proof is not given.

References

Primary source

Marc-Olivier Renou, Xiangling Xu and Laurens T. Ligthart, “Two convergent NPA-like hierarchies for the quantum bilocal scenario”, arXiv:2210.09065 (2026).

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