Quantum Nonlocality: How Does Nature Do It?

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Science  04 Dec 2009:
Vol. 326, Issue 5958, pp. 1357-1358
DOI: 10.1126/science.1182103

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From early childhood we know that to interact with an object, we have either to go to it or to throw something at it. Yet, contrary to all our daily experience, there are spatially separated quantum systems that exhibit nonlocal correlations. Exploring how nature performs its trick of quantum nonlocality (1) has led to new experiments that provide a deeper understanding of the tension between quantum physics and relativity and to proposals for disruptive technologies.