# Laboratory for Particle Physics (LTP)

### LTP Colloquium

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Quantum Zeno Effect

Thursday, April 18, 2024, 16:00

OSGA/EG06

Saverio Pascazio, University of Bari

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Abstract:
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The time evolution of an unstable quantum system is quadratic at short
times (the so-called quantum Zeno region), and follows a power law at
long times. The quantum Zeno region has been confirmed in a plethora of
experiments, with very different quantum systems and experimental
platforms. On the other hand, the power law regime is elusive and very
difficult to observe, essentially because the initial states are
strongly depleted by intermediate exponential evolution.

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After analyzing the problem from a theoretical point of view, we will
review some experiments and discuss concepts and applications.
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