From a feedback-controlled demon to an information ratchet in a double quantum dot.

  title={From a feedback-controlled demon to an information ratchet in a double quantum dot.},
  author={D. Bhattacharyya and Christopher Jarzynski},
  journal={Physical review. E},
  volume={106 6-1},
We present a simple strategy for constructing an information ratchet or memory-tape model of Maxwell's demon, from a feedback-controlled model. We illustrate our approach by converting the Annby-Andersson feedback-controlled double quantum dot model [Phys. Rev. B 101, 165404 (2020)2469-995010.1103/PhysRevB.101.165404] to a memory-tape model. We use the underlying network structure of the original model to design a set of bit interaction rules for the information ratchet. The new model is solved… 

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