Understanding the quantum Zeno effect
  The quantum Zeno effect consists in the hindrance of the evolution of a quantum system that is very frequently monitored and found to be in its initial state at every single measurement. On the basis of the correct formula for the survival probability, i.e. the probability of finding the system in its initial state at every single measurement, we critically analyze a recent proposal and experimental test, that make use of an oscillating system. 
Hiromichi Nakazato, Mikio Namiki (Dept. of Phys, Waseda Univ., Japan),   Saverio Pascazio (Dipt. di Fisica, Univ. di Bari an...