We consider a driven 2-level system with one level showing spontaneous decay to an otherwise uncoupled third level. Rabi transitions to the unstable level are strongly damped. This simple configuration can be used to demonstrate and to explore the quantum Zeno effect leading to a freezing of the sys
Quantum Zeno effect in the decay onto an unstable level
β Scribed by Michael B. Mensky
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 53 KB
- Volume
- 257
- Category
- Article
- ISSN
- 0375-9601
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β¦ Synopsis
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 Ε½ 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 β’ 1 so that during the first transition the system is under continuous observation.
π SIMILAR VOLUMES
An example of constrained unitary quantum dynamics in the context of trapped ions is given. We study a laser driven four-level ion system confined in an isotropic three-dimensional Paul microtrap. Our main result is that when two independent controllable continuous measurement processes are simultan