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A Rock Is a Clock: Physicist Uses Matter to Tell Time

January 10, 2013

mass can be used to measure time and vice versa What is the simplest, most fundamental clock? Physicist Holger Müller and his University of California, Berkeley, colleagues have shown that a single atom is sufficient to measure time using its high-frequency matter wave. Conversely, the frequency of matter can be used to define its mass. The feat is a fundamental demonstration of wave-particle duality central to quantum mechanics. Full Story

University of California, Berkeley

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