The Quantum Zeno Effect Model implements a series of  ideal polarizors and rotors, as described by Paul G. Kwiat, (University of Illinois at Urbana-Champaign), in his website
Interaction Free Measurements, Step Two: The Quantum Zeno Effect, and in  Quantum Seeing in the Dark, Scientific American, November 1966 .

The simulator is based on some of the basic fundamental  ideas of  Quantum Mechanics:

   1. the wave-particle nature of the photon,

   2. the probabilistic interpretation of  quantum mechanics,

   3. the superposition of quantum states, and

   4. the projection postulate, also called wave function collapse postulate.

This gedanken experiment shows how the normal time evolution of a quantum system can be frozen, in such a way that reminds us of the ancient Greek Zeno's lack of movement paradox.

Please note that this resource requires at least version 1.6 of Java (JRE).