| Issue |
EPL
Volume 102, Number 2, April 2013
|
|
|---|---|---|
| Article Number | 20005 | |
| Number of page(s) | 4 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/102/20005 | |
| Published online | 03 May 2013 | |
The quantum Zeno paradox: A matter of information
Institut für Laser-Physik, Universität Hamburg - Jungiusstr. 9, D-20355 Hamburg, Germany, EU
(a) ptoschek@physnet.uni-hamburg.de
Received: 15 January 2013
Accepted: 7 April 2013
The origin of the quantum Zeno paradox is critically re-evaluated. It is demonstrated, that the observation of expectation values, in particular of reduced decay constants, cannot qualify as the proof of a quantum Zeno effect. Rather, the detection of the transition times of individual quantum objects provides necessary and sufficient evidence.
PACS: 03.65.Xp – Tunneling, traversal time, quantum Zeno dynamics / 42.50.Ex – Optical implementations of quantum information processing and transfer
© EPLA, 2013
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