paper

Quantum Zeno effect in the decay onto an unstable level

arXiv:quant-ph/9908063 · doi:10.1016/S0375-9601(99)00290-X

Abstract

Under certain assumptions it is shown that the decay of level 2 of a three-level system onto level 1 is slowed down because of the further decay of level 1 onto level 0. It is argued that this phenomenon may be interpreted as a consequence of the quantum Zeno effect. The reason why this may be possible is that the second decay (or accompanying photon radiation) may be considered as a sign of the transition 2 -> 1 so that during the first transition the system is under continuous observation.

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