Quantum-Dot Logic Circuits Based on the Shared Binary-Decision Diagram

We propose a method of constructing quantum-dot logic circuits that can be used to develop large digital systems with ultralow power consumption. These dot circuits consist of dot arrays fabricated using a wrap-gate structure, and they perform logic operations on the basis of the binary decision diagram. Sample dot circuits such as elementary logic gates and adder subsystems are designed. The operation of the designed circuits is confirmed by computer simulation.