Quantum non-locality based on finite-speed causal influences leads to superluminal signalling

@article{Bancal2012QuantumNB,
  title={Quantum non-locality based on finite-speed causal influences leads to superluminal signalling},
  author={Jean-Daniel Bancal and Stefano Pironio and Antonio Ac{\'i}n and Yeong-Cherng Liang and Valerio Scarani and Nicolas Gisin},
  journal={Nature Physics},
  year={2012},
  volume={8},
  pages={867-870}
}
Non-local quantum correlations between distant particles cannot be explained by signals propagating slower than the speed of light. It is now shown that they cannot be explained by hidden influences propagating faster than the speed of light either, because that would permit faster-than-light communication. 
View PDF on arXiv
104 Citations
Highly Influential Citations
6
Background Citations
36
Methods Citations
2

104 Citations

Citation Type

Citation Type

Tripartite quantum state violating the hidden-influence constraints
The possibility to explain quantum correlations via (possibly) unknown causal influences propagating gradually and continuously at a finite speed v>c has attracted some attention recently. In…
Lower bound on the speed of nonlocal correlations without locality and measurement choice loopholes
  • Juan Yin, Yuan Cao, Jian-Wei Pan
  • Physics
    2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications
  • 2014
TLDR
Here, the lower bound speed of spooky action was 4 orders of magnitude of the speed of light and the loopholes were closed by observing a 12 h continuous violation of the Bell inequality.
Are There Quantum Effects Coming from Outside Space-time? Nonlocality, free will and
Observing the violation of Bell’s inequality tells us something about all possible future theories: they must all predict nonlocal correlations. Hence Nature is nonlocal. After an elementary…
Nonlocality beyond quantum mechanics
There are good reasons to consider nonlocality to be the defining feature of quantum mechanics, but stronger nonlocal correlations than those predicted by quantum theory could exist, which raises the…
Approaching time measurement with Quantum Information Theory
In this thesis a general non-relativistic operational model for quantum clocks called quantum hourglass is devised. Taking results from the field of Quantum Information Theory the limitations of such…
Quantum Correlations and Quantum Non-Locality: A Review and a Few New Ideas
In this paper we make an extensive description of quantum non-locality, one of the most intriguing and fascinating facets of quantum mechanics. After a general presentation of several studies on this…
Decoherence-free measurements in steering tasks
Quantum entanglement has been used as an experimental tool to control the state of a quantum subsystem by measurements in its twin subsystem by Kwiat and Chiao 21 year ago, already, with entangled…
Quantum correlations in Newtonian space and time: arbitrarily fast communication or nonlocality
We investigate possible explanations of quantum correlations that satisfy the principle of continuity, which states that everything propagates gradually and continuously through space and time. In…
The Quantum Hourglass Approaching time measurement with Quantum Information Theory
In this thesis a general non-relativistic operational model for quantum clocks called quantum hourglass is devised. Taking results from the field of Quantum Information Theory the limitations of such…
Measurements of entanglement over a kilometric distance to test superluminal models of Quantum Mechanics: preliminary results.
As shown in the EPR paper (Einstein, Podolsky e Rosen, 1935), Quantum Mechanics is a non-local Theory. The Bell theorem and the successive experiments ruled out the possibility of explaining quantum…
...
...

References

SHOWING 1-10 OF 33 REFERENCES
Superluminal influences, hidden variables, and signaling
Superluminal hidden communication as the underlying mechanism for quantum correlations: Constraining models
Since Bell's theorem, it is known that quantum correlations cannot be described by local variables (LV) alone: if one does not want to abandon classical mechanisms for correlations, a superluminal…
Quantum nonlocality as an axiom
In the conventional approach to quantum mechanics, indeterminism is an axiom and nonlocality is a theorem. We consider inverting the logical order, making nonlocality an axiom and indeterminism a…
Bell's inequality test: more ideal than ever
The experimental violation of Bell's inequalities confirms that a pair of entangled photons separated by hundreds of metres must be considered a single non-separable object — it is impossible to…
A lower bound for the velocity of quantum communications in the preferred frame
Testing the speed of ‘spooky action at a distance’
TLDR
This work performed a Bell test over more than 24 hours between two villages separated by 18 km and approximately east–west oriented, with the source located precisely in the middle and continuously observed two-photon interferences well above the Bell inequality threshold.
Violation of Bell Inequalities by Photons More Than 10 km Apart
A Franson-type test of Bell inequalities by photons 10.9 km apart is presented. Energy-time entangled photon pairs are measured using two-channel analyzers, leading to a violation of the inequalities…
Violation of Bell's Inequality under Strict Einstein Locality Conditions
We observe strong violation of Bell's inequality in an Einstein-Podolsky-Rosen-type experiment with independent observers. Our experiment definitely implements the ideas behind the well-known work by…
Collapse and Relativity
Ever since we have been in the possession of quantum theories without observers, such as Bohmian mechanics or the Ghirardi‐Rimini‐Weber (GRW) theory of spontaneous wave function collapse, a major…
Speakable and Unspeakable in Quantum Mechanics: Collected Papers on Quantum Philosophy
List of papers on quantum philosophy by J. S. Bell Preface Acknowledgements Introduction by Alain Aspect 1. On the problem of hidden variables in quantum mechanics 2. On the Einstein-Rosen-Podolsky…
...
...