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arXiv · 1708.00669

Exploring the limits of no backward in time signalling

Yelena Guryanova·Ralph Silva·Anthony J. Short·Paul Skrzypczyk·Nicolas Brunner·Sandu Popescu
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Abstract

We present an operational and model-independent framework to investigate the concept of no-backwards-in-time signaling. We define no-backwards-in-time signaling conditions, closely related to the spatial no-signaling conditions. These allow for theoretical possibilities in which the future affects the past, nevertheless without signaling backwards in time. This is analogous to non-local but no-signaling spatial correlations. Furthermore, our results shed new light on situations with indefinite causal structure and their connection to quantum theory.

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Yelena Guryanova, Ralph Silva, Anthony J. Short, Paul Skrzypczyk, Nicolas Brunner, Sandu Popescu. 2017-08-02. Exploring the limits of no backward in time signalling. https://doi.org/10.22331/q-2019-12-09-211

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