Information causality in the quantum and post-quantum regime

Ringbauer, Martin, Fedrizzi, Alessandro, Berry, Dominic W. and White, Andrew G. (2014) Information causality in the quantum and post-quantum regime. Scientific Reports, 4 . doi:10.1038/srep06955

Author Ringbauer, Martin
Fedrizzi, Alessandro
Berry, Dominic W.
White, Andrew G.
Title Information causality in the quantum and post-quantum regime
Journal name Scientific Reports   Check publisher's open access policy
ISSN 2045-2322
Publication date 2014-11
Year available 2014
Sub-type Article (original research)
DOI 10.1038/srep06955
Open Access Status DOI
Volume 4
Total pages 6
Place of publication London, United Kingdom
Publisher Nature Publishing Group
Collection year 2015
Language eng
Formatted abstract
Quantum correlations can be stronger than anything achieved by classical systems, yet they are not reaching the limit imposed by relativity. The principle of information causality offers a possible explanation for why the world is quantum and why there appear to be no even stronger correlations. Generalizing the no-signaling condition it suggests that the amount of accessible information must not be larger than the amount of transmitted information. Here we study this principle experimentally in the classical, quantum and post-quantum regimes. We simulate correlations that are stronger than allowed by quantum mechanics by exploiting the effect of polarization-dependent loss in a photonic Bell-test experiment. Our method also applies to other fundamental principles and our results highlight the special importance of anisotropic regions of the no-signalling polytope in the study of fundamental principles.
Keyword Nonlocality
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Official 2015 Collection
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Citation counts: TR Web of Science Citation Count  Cited 2 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 1 times in Scopus Article | Citations
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