# Relational EPR

@article{Smerlak2006RelationalE, title={Relational EPR}, author={Matteo Smerlak and Carlo Rovelli}, journal={Foundations of Physics}, year={2006}, volume={37}, pages={427-445} }

We study the EPR-type correlations from the perspective of the relational interpretation of quantum mechanics. We argue that these correlations do not entail any form of “non-locality”, when viewed in the context of this interpretation. The abandonment of strict Einstein realism implied by the relational stance permits to reconcile quantum mechanics, completeness, (operationally defined) separability, and locality.

## 166 Citations

### The Relational Interpretation of Quantum Mechanics and the EPR Paradox

- Physics
- 2017

Bernad d’Espagnat. Most of us, of course, have heard of the new and daring interpretation of quantum mechanics proposed by Carlo Rovelli, who is here today, called Relational Quantum Mechanics.

### The Relational Interpretation of Quantum Physics

- Physics
- 2021

The relational interpretation (or RQM, for Relational Quantum Mechanics) solves the measurement problem by considering an ontology of sparse relative events, or facts. Events are realized in…

### An attempt to understand relational quantum mechanics

- Physics
- 2022

. We search for a possible mathematical formulation of some of the key ideas of the relational interpretation of quantum mechanics and study their consequences. We also brieﬂy overview some proposals…

### The Relational Interpretation

- Physics
- 2021

The relational interpretation (or RQM, for Relational Quantum Mechanics) solves the measurement problem by considering an ontology of sparse relative facts. Facts are realized in interactions between…

### The Notion of Locality in Relational Quantum Mechanics

- PhilosophyFoundations of Physics
- 2019

The present article shows that the failure of ‘locality’ in the sense of Bell, once interpreted in the relational framework, reduces to the existence of a common cause in an indeterministic context.

### Can We Make Sense of Relational Quantum Mechanics?

- Philosophy
- 2018

It is claimed that there is currently no adapted locality criterion to evaluate whether the resulting interpretation is local or not, and one of its central claims concerning the possibility for an observer to have knowledge about other observer’s events is clarified.

### An Argument Against the Realistic Interpretation of the Wave Function

- Physics, Philosophy
- 2015

Testable predictions of quantum mechanics are invariant under time reversal. But the evolution of the quantum state in time is not so, neither in the collapse nor in the no-collapse interpretations…

### The EPR paradox and the uncertainty principle

- Physics, Philosophy
- 2021

The EPR paradox appears when measurement results of some properties of two distantly entangled particles are correlated in a way that cannot be explained classically, and apparently violate localit...

### The Algebra of the Pseudo-Observables II: The Measurement Problem

- Physics
- 2017

In this second paper, we develop the full mathematical structure of the algebra of the pseudo-observables, in order to solve the quantum measurement problem. Quantum state vectors are recovered but…

## References

SHOWING 1-10 OF 35 REFERENCES

### The EPR Argument in a Relational Interpretation of Quantum Mechanics

- Physics
- 2000

It is shown that in the Rovelli relational interpretation of quantum mechanics, in which the notion of absolute or observer independent state is rejected, the conclusion of the ordinary EPR argument…

### On the Problem of Hidden Variables in Quantum Mechanics

- Physics
- 1966

The demonstrations of von Neumann and others, that quantum mechanics does not permit a hidden variable interpretation, are reconsidered. It is shown that their essential axioms are unreasonable. It…

### Relational quantum mechanics

- Physics
- 1996

I suggest that the common unease with taking quantum mechanics as a fundamental description of nature (the “measurement problem”) could derive from the use of an incorrect notion, as the unease with…

### The Einstein-Podolsky-Rosen physical reality is completely described by quantum mechanics

- Physics
- 1982

### A Bell-type theorem without hidden variables

- Philosophy
- 2002

It is shown that no theory that satisfies certain premises can exclude faster-than-light influences. The premises include neither the existence of hidden variables nor counterfactual definiteness,…

### Einstein, Podolsky, Rosen, and Shannon

- Physics
- 2003

The Einstein–Podolsky–Rosen paradox (1935) is reexamined in the light of Shannon’s information theory (1984). The EPR argument did not take into account that the observer’s information was localized,…

### Quantum Foundations in the Light of Quantum Information

- Physics
- 2001

This paper reports three almost trivial theorems that nevertheless appear to have significant import for quantum foundations studies. 1) A Gleason-like derivation of the quantum probability law, but…

### Clearing up Mysteries — The Original Goal

- Physics
- 1989

It is shown how the character of a scientific theory depends on one’s attitude toward probability, by three examples from widely different fields: diffusion in kinetic theory, the Einstein-Podolsky-Rosen (EPR) paradox in quantum theory, and the second law of thermodynamics in biology.

### Non-Representationalist Theories of Knowledge and Quantum Mechanics

- Philosophy
- 2001

Quantum Mechanics has imposed strain on traditional (dualist and representationalist) epistemological conceptions. An alternative was offered by Bohr and Heisenberg, according to whom natural science…