Quantum Zeno and anti-Zeno effects in the Friedrichs model

I. Antoniou, E. Karpov, G. Pronko, E. Yarevsky
2001 Physical Review A. Atomic, Molecular, and Optical Physics  
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.
doi:10.1103/physreva.63.062110 fatcat:sseihaeb2rhufeqytyfpc7ni4i