Skip to content

Exploring the limits of no backwards in time signalling

Research output: Contribution to journalArticle

Original languageEnglish
Article number211
Number of pages24
DateAccepted/In press - 25 Nov 2019
DatePublished (current) - 9 Dec 2019


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

Download statistics

No data available



  • Full-text PDF (final published version)

    Rights statement: This is the final published version of the article (version of record). It first appeared online via Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften at Please refer to any applicable terms of use of the publisher.

    Final published version, 941 KB, PDF document

    Licence: CC BY


View research connections

Related faculties, schools or groups