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arXiv · 2403.15331

Local fraction in Static Causal Orders

Stefano Gogioso·Nicola Pinzani
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Abstract

In this Letter, we introduce a notion of local fraction for experiments taking place against arbitrary static causal backgrounds -- greatly generalising previous results on no-signalling scenarios -- and we explicitly formulate a linear program to compute this quantity. We derive a free characterisation of causal functions which allows us to efficiently construct the matrices required to perform concrete calculations. We demonstrate our techniques by analysing the local fraction of a novel example involving two Bell tests in interleaved causal order.

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Stefano Gogioso, Nicola Pinzani. 2024-03-22. Local fraction in Static Causal Orders. https://arxiv.org/abs/2403.15331

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