News of the WeekQuantum Physics

Measurement Schemes Let Physicists Tiptoe Through the Quanta

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Science  27 Jan 2006:
Vol. 311, Issue 5760, pp. 451
DOI: 10.1126/science.311.5760.451a

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Measuring the condition or "state" of a quantum particle knocks it out of that state. Now, two groups of physicists have made the best of that tradeoff by minimizing the disturbance as they extract information from particles of light. (Read more.)