Super-Quantum Correlations: A Necessary Clarification

Uzan, Pierre

doi:10.4236/jqis.2018.83009

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2021

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Cited by 2 publications

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“…If a box is local or No-Signalling, it may certainly be implemented in a signalling fashion but doing so will not affect at all the (local or No-Signalling) character of the box. We believe this is what misled the author of [1] to this fallacious claim.…”

Section: Corrections To the Papermentioning

confidence: 87%

A Sufficient Clarification of “Super-Quantum Correlations: A Necessary Clarification” by Pierre Uzan

Courtemanche¹,

Crépeau²

2021

JQIS

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In the paper "Super-Quantum Correlations: A Necessary Clarification" by Uzan [1], it is suggested that stronger than quantum (or supra-quantum) correlations are not possible. The main point of Uzan's argumentation is the belief that the intuitive definition of No-Signalling (NS) is different from the statistical definition of No-Signalling (NS stat ), and that situations exist where NS stat is respected while NS isn't. In this paper we show why these definitions are one and the same, and where the example from the original paper breaks down. We provide a broader context to help the reader understand intuitively the situation.

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Section: Corrections To the Papermentioning

confidence: 87%