A Novel Reversible Full Adder/Subtractor for Low Power Applications and Nanotechnology based Systems

Reversible logic has been known as a promising research area in nanotechnology based systems with themain goal of reducing power dissipation of digital circuit design in the last few decades. It has a wide range ofextensive applications starting from low power VLSI design and Nano-scaled digital systems to bioinformatics, opticaland quantum computing. In this paper a novel one-bit Nanometric reversible full adder/subtractor has been proposedusing a new 4*4 reversible gate named SHMR Gate and a new modified Fredkin Gate. The presented circuit is used todesign a 4-bit ripple carry adder/subtractor. The proposed design has been improved compared to the exitingcounterparts in terms of the number of constant inputs, garbage outputs, reversible gates and hardware complexity.

کلیدواژه ها:

Nanotechnology based systems ، quantum computing ، reversible logic ، full adder/subtractor ، Nanometriccircuits