Design of High Polarized Binary Wires using Minimum Number of Cells & Related Kink Energy Calculations in Quantum dot Cellular automata

Quantum dot Cellular Automata (QCA) is one of the most popular nano-technology, with the potential for faster speed, lower power consumption and smaller size than the latest CMOS technology. One of the basic building blocks of QCA circuits is QCA wire. The conventional QCA wires require more cells and it has less polarization. In this paper, we have designed high polarized wires using minimum number of QCA cells. The conventional QCA wires which have large polarization require six or more cells. We have designed the binary wire using three QCA cells whose polarization is same with the conventional six cells wire. So it requires lesser area than conventional one. We make the wire circuit more faultfree by adding extra cells at the output section. In each case, the designed QCA wires have more polarization (i.e. more fault free) than conventional wires. Our finally designed high polarized QCA wire has five cells and its polarization is greater than any type of conventional inverters designed till now. Also, here we have calculated the kink energy of each designed binary wires.