Experimental Rectification of Entropy Production by Maxwell's Demon in a Quantum System.

  title={Experimental Rectification of Entropy Production by Maxwell's Demon in a Quantum System.},
  author={Patrice A. Camati and John P. S. Peterson and Tiago B. Batalh{\~a}o and Kaonan Micadei and Alexandre M. Souza and Roberto S. Sarthour and Ivan S. Oliveira and Roberto M. Serra},
  journal={Physical review letters},
  volume={117 24},
Maxwell's demon explores the role of information in physical processes. Employing information about microscopic degrees of freedom, this "intelligent observer" is capable of compensating entropy production (or extracting work), apparently challenging the second law of thermodynamics. In a modern standpoint, it is regarded as a feedback control mechanism and the limits of thermodynamics are recast incorporating information-to-energy conversion. We derive a trade-off relation between information… 

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