Zeno effect in spontaneous decay induced by coupling to an unstable level
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 experi...
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2001 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/59679 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/59679 |
| Access Level: | acceso abierto |
| Palabra clave: | 535 Parametric down-conversion Quantum zeno Single-atom Engineered reservoirs Dark periods Jumps Decoherence Paradox Fluorescence Acceleration Óptica (Física) 2209.19 Óptica Física |
| Sumario: | 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. |
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