Quantum Zeno Effect for Exponentially Decaying Systems release_cwbkszud2vhv3e3nsv5vhttwjy

by Kazuki Koshino, Akira Shimizu

Released as a article .

2003  

Abstract

The quantum Zeno effect -- suppression of decay by frequent measurements -- was believed to occur only when the response of the detector is so quick that the initial tiny deviation from the exponential decay law is detectable. However, we show that it can occur even for exactly exponentially decaying systems, for which this condition is never satisfied, by considering a realistic case where the detector has a finite energy band of detection. The conventional theories correspond to the limit of an infinite bandwidth. This implies that the Zeno effect occurs more widely than expected so far.
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Date   2003-07-10
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