Probing measurement-induced effects in quantum walks via recurrence

@article{Nitsche2018ProbingME,
  title={Probing measurement-induced effects in quantum walks via recurrence},
  author={Thomas Nitsche and Sonja Barkhofen and Regina Kruse and Linda Sansoni and Martin {\vS}tefaň{\'a}k and Aur{\'e}l G{\'a}bris and V{\'a}clav Poto{\vc}ek and Tam{\'a}s Kiss and Igor Jex and Christine Silberhorn},
  journal={Science Advances},
  year={2018},
  volume={4}
}
The effects of projective measurements on the quantum mechanical evolution of a particle can be simulated with coherent light. Measurements on a quantum particle unavoidably affect its state, since the otherwise unitary evolution of the system is interrupted by a nonunitary projection operation. To probe measurement-induced effects in the state dynamics using a quantum simulator, the challenge is to implement controlled measurements on a small subspace of the system and continue the evolution… 
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