Zeno effect in spontaneous decay induced by coupling to an unstable level



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Luis Aina, Alfredo (2001) Zeno effect in spontaneous decay induced by coupling to an unstable level. Physical review A, 64 (3). 032104_1-032104_7. ISSN 1050-2947

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Official URL: http://dx.doi.org/10.1103/PhysRevA.64.032104


A metastable atomic level can be tendered unstable in a controllable way by coupling it to a decaying state. In this work we carry out a full dynamical analysis of the Zeno effect in this kind of unstable systems, comparing it to the inhibition of purely coherent Rabi oscillations. Simple and experimentally feasible measuring strategies involving three atomic levels are considered. It is shown that this induced decay is actually an example of a partial Zeno effect so that the observed evolution results from the competition of two Zeno effects. We also show that a three-level scheme can display both coherent, incoherent, and anti-Zeno effects.

Item Type:Article
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©2001 The American Physical Society

Uncontrolled Keywords:Parametric down-conversion; Quantum zeno; Single-atom; Engineered reservoirs; Dark periods; Jumps; Decoherence; Paradox; Fluorescence; Acceleration
Subjects:Sciences > Physics > Optics
ID Code:31489
Deposited On:03 Aug 2015 12:42
Last Modified:03 Aug 2015 12:42

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