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Loopholes in Bell test experiments

Index Loopholes in Bell test experiments

In Bell test experiments, there may be problems of experimental design or set-up that affect the validity of the experimental findings. [1]

18 relations: Alain Aspect, Bell test experiments, Bell's theorem, CHSH inequality, Entanglement witness, EPR paradox, John Stewart Bell, Kavli Institute of Nanoscience, Local hidden variable theory, Nature (journal), Paradox, Physical Review Letters, Principle of locality, Quantum entanglement, Quantum mechanics, Quantum nonlocality, Superdeterminism, The New York Times.

Alain Aspect

Alain Aspect (born 15 June 1947) is a French physicist noted for his experimental work on quantum entanglement.

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Bell test experiments

A Bell test experiment or Bell's inequality experiment, also simply a Bell test, is a real-world physics experiment designed to test the theory of quantum mechanics in relation to two other concepts: the principle of locality and Einstein's concept of "local realism".

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Bell's theorem

Bell's theorem is a "no-go theorem" that draws an important distinction between quantum mechanics and the world as described by classical mechanics.

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CHSH inequality

In physics, the CHSH inequality can be used in the proof of Bell's theorem, which states that certain consequences of entanglement in quantum mechanics cannot be reproduced by local hidden variable theories.

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Entanglement witness

In quantum information theory, an entanglement witness is a functional which distinguishes a specific entangled state from separable ones.

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EPR paradox

The Einstein–Podolsky–Rosen paradox or the EPR paradox of 1935 is a thought experiment in quantum mechanics with which Albert Einstein and his colleagues Boris Podolsky and Nathan Rosen (EPR) claimed to demonstrate that the wave function does not provide a complete description of physical reality, and hence that the Copenhagen interpretation is unsatisfactory; resolutions of the paradox have important implications for the interpretation of quantum mechanics.

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John Stewart Bell

John Stewart Bell FRS (28 June 1928 – 1 October 1990) was a Northern Irish physicist, and the originator of Bell's theorem, an important theorem in quantum physics regarding hidden variable theories.

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Kavli Institute of Nanoscience

The Kavli Institute of Nanoscience Delft was established in 2004 at the Department of NanoScience, Faculty of Applied Sciences, Delft University of Technology through a grant by the US-based The Kavli Foundation.

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Local hidden variable theory

A local hidden variable theory in the interpretation of quantum mechanics is a hidden variable theory that has the added requirement of being consistent with local realism.

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Nature (journal)

Nature is a British multidisciplinary scientific journal, first published on 4 November 1869.

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Paradox

A paradox is a statement that, despite apparently sound reasoning from true premises, leads to an apparently self-contradictory or logically unacceptable conclusion.

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Physical Review Letters

Physical Review Letters (PRL), established in 1958, is a peer-reviewed, scientific journal that is published 52 times per year by the American Physical Society.

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Principle of locality

In physics, the principle of locality states that an object is only directly influenced by its immediate surroundings.

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Quantum entanglement

Quantum entanglement is a physical phenomenon which occurs when pairs or groups of particles are generated, interact, or share spatial proximity in ways such that the quantum state of each particle cannot be described independently of the state of the other(s), even when the particles are separated by a large distance—instead, a quantum state must be described for the system as a whole.

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Quantum mechanics

Quantum mechanics (QM; also known as quantum physics, quantum theory, the wave mechanical model, or matrix mechanics), including quantum field theory, is a fundamental theory in physics which describes nature at the smallest scales of energy levels of atoms and subatomic particles.

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Quantum nonlocality

In theoretical physics, quantum nonlocality most commonly refers to the phenomenon by which measurements made at a microscopic level contradict a collection of notions known as local realism that are regarded as intuitively true in classical mechanics.

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Superdeterminism

In quantum mechanics, superdeterminism is a hypothetical class of theories that evade Bell's theorem by virtue of being completely deterministic.

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The New York Times

The New York Times (sometimes abbreviated as The NYT or The Times) is an American newspaper based in New York City with worldwide influence and readership.

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Redirects here:

Bell test loopholes, Loopholes in optical Bell test experiments.

References

[1] https://en.wikipedia.org/wiki/Loopholes_in_Bell_test_experiments

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