General scheme of differential imaging employing weak measurement

  title={General scheme of differential imaging employing weak measurement},
  author={Xiong Liu and Angel T. M. Wang and Junfan Zhu and Ling Ye and Rongchun Ge and Jinglei Du and Hong Zhang and Zhiyou Zhang},
  journal={Physical Review A},
We propose and experimentally realize a general scheme of differential imaging employing the idea of weak measurement. We show that the weak coupling between the system of interest and a two-level ancilla can introduce a two-beam circuit after an arbitrary pre-selection of the ancilla. By choosing the post-selection orthogonal to the pre-selection measurement, an effective imaging platform based on differential operations is shown achieved. Experimental results on both the Sagnac interferometer… 



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