Exploring the limits of no backwards in time signalling
- Guryanova, Yelena ORCID Institute for Quantum Optics and Quantum Information (IQOQI), Boltzmanngasse 3, Vienna 1090, Austria
- Silva, Ralph ORCID Institute for Theoretical Physics, ETH Zürich, Wolfgang-Pauli-Str. 27, Zürich, Switzerland
- Short, Anthony J. H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL, United Kingdom
- Skrzypczyk, Paul ORCID H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL, United Kingdom
- Brunner, Nicolas ORCID Group of Applied Physics, University of Geneva, Chemin de Pinchat 22, CH-1211, Geneva 4, Switzerland
- Popescu, Sandu ORCID H. H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol, BS8 1TL, United Kingdom
- 2019-12-9
Published in:
- Quantum. - Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften. - 2019, vol. 3, p. 211
English
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.
- Language
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- English
- Open access status
- gold
- Identifiers
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- DOI 10.22331/q-2019-12-09-211
- ISSN 2521-327X
- Persistent URL
- https://sonar.ch/global/documents/241462
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