Influence of the measurement on the decay law: the bang-bang case
- After reviewing the description of an unstable state in the framework of nonrelativistic Quantum Mechanics (QM) and relativistic Quantum Field Theory (QFT), we consider the effect of pulsed, ideal measurements repeated at equal time intervals on the lifetime of an unstable system. In particular, we investigate the case in which the ‘bare’ survival probability is an exact exponential (a very good approximation in both QM and QFT), but the measurement apparatus can detect the decay products only in a certain energy range. We show that the Quantum Zeno Effect can occur in this framework as well.
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| Author: | Francesco GiacosaORCiDGND, Giuseppe PagliaraORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-719283 |
| DOI: | https://doi.org/10.1051/epjconf/20149504025 |
| ISSN: | 2100-014X |
| Parent Title (English): | EPJ Web of Conferences |
| Publisher: | EDP Sciences |
| Place of publication: | Les Ulis |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2015/05/29 |
| Date of first Publication: | 2015/05/29 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Contributing Corporation: | International Conference on New Frontiers in Physics (3. : 2014 : Crete) |
| Release Date: | 2023/02/02 |
| Volume: | 95 |
| Issue: | 04025 |
| Page Number: | 8 |
| HeBIS-PPN: | 506630382 |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Creative Commons - Namensnennung 4.0 |
