Response to "Comment on 'Zero and negative energy dissipation at information-theoretic erasure'" Academic Article uri icon


  • 2016, Springer Science+Business Media New York. We prove that statistical information-theoretic quantities, such as information entropy, cannot generally be interrelated with the lower limit of energy dissipation during information erasure. We also point out that, in deterministic and error-free computers, the information entropy of memories does not change during erasure because its value is always zero. On the other hand, for information-theoretic erasurei.e., thermalization/randomization of the memorythe originally zero information entropy (with deterministic data in the memory) changes after erasure to its maximum value, 1 bit/memory bit, while the energy dissipation is still positive, even at parameters for which the thermodynamic entropy within the memory cell does not change. Information entropy does not convert to thermodynamic entropy and to the related energy dissipation; they are quantities of different physical nature. Possible specific observations (if any) indicating convertibility are at most fortuitous and due to the disregard of additional processes that are present.

published proceedings


author list (cited authors)

  • Kish, L. B., Granqvist, C., Khatri, S. P., & Peper, F.

citation count

  • 3

complete list of authors

  • Kish, Laszlo Bela||Granqvist, Claes-Goran||Khatri, Sunil P||Peper, Ferdinand

publication date

  • March 2016