Suppression of Zeno effect for distant detectors

Abstract

We describe the influence of continuous measurement in a decaying system and the role of the distance from the detector to the initial location of the system. The detector is modeled first by a step absorbing potential. For a close and strong detector, the decay rate of the system is reduced; weaker detectors do not modify the exponential decay rate but suppress the long-time deviations above a coupling threshold. Nevertheless, these perturbing effects of measurement disappear by increasing the distance between the initial state and the detector, as well as by improving the efficiency of the detector.

4 pages, 4 figures

Cited by in corpus (4)

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• Disclosing hidden information in the quantum Zeno effect: Pulsed measurement of the quantum time of arrival
• Generalized relation between pulsed and continuous measurements in the quantum Zeno effect
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