Wiringless logical operation circuits

Abstract

A logical operation circuit in which wiring as generally performed between transistors is made unnecessary to improve reliability, stability and integration degree of a logical circuit using a tunnel phenomenon, for example, a single-electron tunnel phenomenon, or a flight phenomenon of a particle group. Conducting materials are arranged in a two-dimensional plane or three-dimensional space in the logical circuit. When two conducting materials are arranged to be nearest each other, the two conducting materials are connected, for example, by a single-electron tunnel phenomenon. When two conducting materials are arranged to be not nearest, there is no connection between the conducting materials by the tunnel phenomenon. Propagation of electrons is controlled by changing the arrangement. Further, because particles which have entered input regions move toward different flight directions respectively from a branch region on the basis of the property that two particles cannot enter simultaneously within an effective scatter distance by repulsive interaction between particles, flight of particles is controlled so as to enter or not branched particles into an observation region to thereby construct a wiringless logical operation circuit.