Thermodynamics and Energy


Response to “Comment on ‘Zero and Negative Energy Dissipation at Information-Theoretic Erasure’”

Authors: Laszlo B. Kish, Claes-Goran Granqvist, Sunil P. Khatri, Ferdinand Peper

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 erasure—i.e., “thermalization” / randomization of the memory—the 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.

Comments: 5 Pages. Accepted for publication in the Journal of Computational Electronics

Download: PDF

Submission history

[v1] 2016-01-25 06:06:21

Unique-IP document downloads: 31 times

Add your own feedback and questions here:
You are equally welcome to be positive or negative about any paper but please be polite. If you are being critical you must mention at least one specific error, otherwise your comment will be deleted as unhelpful.

comments powered by Disqus