Thermodynamic Cost of Reliability and Low Temperatures: Tightening Landauer's Principle and the Second Law

By Dominik Janzing, P. Wocjan, R. Zeier, Rubino Geiß, T. Beth. 2000

262 citations recorded by the source corpus.

Landauer's principle states that the erasure of one bit of information requires thefree energy kT ln 2. We argue that the reliability of the bit erasure process isbounded by the accuracy inherent in the statistical state of the energy source(“the resources”) driving the process. We develop a general framework describingthe “thermodynamic worth” of the resources with respect to reliable bit erasureor good cooling. This worth turns out to be given by the distinguishability of theresource's state from its equilibrium state in the sense of a statistical inferenceproblem. Accordingly, Kullback—Leibler relative information is a decisivequantity for the “worth” of the resource's state. Due to the asymmetry of relativeinformation, the reliability of the erasure process is bounded rather by the relativeinformation of the equilibrium state with respect to the actual state than by therelative information of the actual state with respect to the equilibrium state (whichis the free energy up to constants).

Subfields: Atomic and Molecular Physics, and Optics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/ad630a88ab2a5f390d12120a1dc2ceb381996129

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In Atomic and Molecular Physics, and Optics

  1. Gilad Gour
  2. Eric Chitambar
  3. Robert W. Spekkens
  4. Fernando G. S. L. Brandão
  5. Terry Rudolph
  6. Michal Horodecki
  7. David Jennings
  8. Matteo Lostaglio

In Statistical and Nonlinear Physics

  1. Gilad Gour
  2. Terry Rudolph
  3. Eric Chitambar
  4. Robert W. Spekkens
  5. David Jennings
  6. Matteo Lostaglio
  7. Michal Horodecki
  8. Jonathan Oppenheim

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