Quantum Zeno and anti-Zeno effects in the Friedrichs model

Abstract

We analyze the short-time behavior of the survival probability in the frame of the Friedrichs model for different formfactors. We have shown that this probability is not necessary analytic at the time origin. The time when the quantum Zeno effect could be observed is found to be much smaller than usually estimated. We have also studied the anti-Zeno era and have estimated its duration.

References added. Appendix B shortened. Discussions extended

References in corpus (1)

• The Quantum Zeno Effect - Evolution of an Atom Impeded by Measurement

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