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Nature 446, 866-867 (19 April 2007) | doi:10.1038/446866a; Published online 18 April 2007
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Quantum mechanics: To be or not to be local
Alain Aspect1
Abstract
The experimental violation of mathematical relations known as Bell's inequalities sounded the death-knell of Einstein's idea of 'local realism' in quantum mechanics. But which concept, locality or realism, is the problem?
The development of quantum mechanics early in the twentieth century obliged physicists to change radically the concepts they used to describe the world. The main ingredient of the first quantum revolution, wave–particle duality, has led to inventions such as the transistor and the laser that are at the root of the information society.
- Alain Aspect is in the Laboratoire Charles Fabry de l'Institut d'Optique, Campus Polytechnique, RD 128, F-91127 Palaiseau, France.
Email: alain.aspect@institutoptique.fr
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