Exploring the limits of no backwards in time signalling

Yelena  Guryanova; Ralph F Silva; A J Short; Paul Skrzypczyk; Nicolas Brunner; Sandu Popescu

doi:10.22331/q-2019-12-09-211

Exploring the limits of no backwards in time signalling

Yelena Guryanova, Ralph F Silva, A J Short, Paul Skrzypczyk, Nicolas Brunner, Sandu Popescu

School of Physics

Research output: Contribution to journal › Article (Academic Journal) › peer-review

4 Citations (Scopus)

140 Downloads (Pure)

Abstract

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.

Original language	English
Article number	211
Number of pages	24
Journal	Quantum
Volume	3
DOIs	https://doi.org/10.22331/q-2019-12-09-211
Publication status	Published - 9 Dec 2019

Research Groups and Themes

Bristol Quantum Information Institute
QITG

Access to Document

10.22331/q-2019-12-09-211

Full-text PDF (final published version)
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 https://quantum-journal.org/papers/q-2019-12-09-211/. Please refer to any applicable terms of use of the publisher.
Final published version, 941 KBLicence: CC BY

Handle.net

Persistent link

Embargoed Document

Full-text PDF (accepted author manuscript)
Accepted author manuscript, 806 KB
Request copy

Cite this

@article{7c76780ac1b44e41a44c6391b3bddbaa,

title = "Exploring the limits of no backwards in time signalling",

abstract = "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.",

author = "Yelena Guryanova and Silva, {Ralph F} and Short, {A J} and Paul Skrzypczyk and Nicolas Brunner and Sandu Popescu",

year = "2019",

month = dec,

day = "9",

doi = "10.22331/q-2019-12-09-211",

language = "English",

volume = "3",

journal = "Quantum",

issn = "2521-327X",

publisher = "Quantum Journal",

}

TY - JOUR

T1 - Exploring the limits of no backwards in time signalling

AU - Guryanova, Yelena

AU - Silva, Ralph F

AU - Short, A J

AU - Skrzypczyk, Paul

AU - Brunner, Nicolas

AU - Popescu, Sandu

PY - 2019/12/9

Y1 - 2019/12/9

N2 - 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.

AB - 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.

U2 - 10.22331/q-2019-12-09-211

DO - 10.22331/q-2019-12-09-211

M3 - Article (Academic Journal)

SN - 2521-327X

VL - 3

JO - Quantum

JF - Quantum

M1 - 211

ER -

Exploring the limits of no backwards in time signalling

Abstract

Research Groups and Themes

Access to Document

Handle.net

Embargoed Document

Fingerprint

Cite this