A model and properties of a thermodynamically reversible logic gate

Abstract

Requirements for a completely reversible (in thermodynamic terms) binary logic gate in which the computing energy returns to the system and is used in subsequent computations are put forward. A set of elements of the reversible gate is considered, and conditions necessary for its operation are formulated. A mechanical and an electronic design of the completely reversible gate, as well as the configurations of reversible logic units of arbitrary complexity, are suggested. Difficulties in implementing a reversible power supply are discussed. Results of computer-aided simulation of CMIS reversible logic devices are presented.