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August 23rd, 2010

Quantum Zeno Effect Allows "Interaction-free" Switching

Abstract:
The quantum zeno effect is one of the stranger and more fascinating consequences of quantum mechanics. It offers a surprising and counterintuitive way of controlling quantum systems that are changing from one state to another.

That sounds useful but the ability to harness the quantum zeno effect has so far eluded physicists. Now Yu-Ping Huang and buddies at Northwestern University in Evanston Illinois, say they've worked out how to use the quantum zeno effect to make an "interaction free" switch.

Source:
technologyreview.com

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