Universal reversible logic gate design for low power computation at nano-scale

Reversible logic has caught the attention of many a researchers during recent years for its enormous possibility of application in low power CMOS design, quantum computing and nanotechnology. Our contribution in this present work is in two folds. Firstly, we have proposed two new reversible gates ANOX (ANd-Or-Xor) gate and NDI (NanD-Inverter) gate which are universal in nature. These gates can be used for the design of large and complex combinational and sequential circuits. Secondly, for the design of the proposed gates we have used the advantages of two technologies, i.e. reversible logic and QCA (Quantum dot Cellular Automata). Reversible logic is used for low power computation and QCA is used for nano scale and high speed computation. So, these proposed gates can be used for high speed, low power and nano-scale computing.