Perfect Zeno-like effect through imperfect measurements at a finite frequency

@article{Layden2015PerfectZE,
  title={Perfect Zeno-like effect through imperfect measurements at a finite frequency},
  author={David Layden and Eduardo Mart{\'i}n-Mart{\'i}nez and Achim Kempf},
  journal={Physical Review A},
  year={2015},
  volume={91},
  pages={022106}
}
The quantum Zeno effect is usually thought to require infinitely frequent and perfect projective measurements to freeze the dynamics of quantum states. We show that perfect freezing of quantum states can also be achieved by more realistic nonprojective measurements performed at a finite frequency. 

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