Electrical Maxwell Demon and Szilard Engine Utilizing Johnson Noise, Measurement, Logic and Control

  title={Electrical Maxwell Demon and Szilard Engine Utilizing Johnson Noise, Measurement, Logic and Control},
  author={L. Kish and C. Granqvist},
  journal={PLoS ONE},
We introduce a purely electrical version of Maxwell's demon which does not involve mechanically moving parts such as trapdoors, etc. It consists of a capacitor, resistors, amplifiers, logic circuitry and electronically controlled switches and uses thermal noise in resistors (Johnson noise) to pump heat. The only types of energy of importance in this demon are electrical energy and heat. We also demonstrate an entirely electrical version of Szilard's engine, i.e., an information-controlled… Expand
Comments on "sub-KBT micro-electromechanical irreversible logic gate"
  • L. Kish
  • Mathematics, Computer Science
  • ArXiv
  • 2016
The argumentation is invalid because it neglects the dominant source of energy dissipation, namely, the charging energy of the capacitance of the input electrode, which totally dissipates during the full (0-1-0) cycle of logic values. Expand
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