Quantum cost optimized design of 4-bit reversible universal shift register using reduced number of logic gate
Heranmoy Maity, Arindam Biswas, Anup Kumar Bhattacharjee, Anita Pal · International Journal of Quantum Information · 2018
In this paper, we have proposed the design of quantum cost (QC) optimized 4-bit reversible universal shift register (RUSR) using reduced number of reversible logic gates. The proposed design is very useful in quantum computing due to its low QC, less no. of reversible logic gate and less delay. The QC, no. of gates, garbage outputs (GOs) are respectively 64, 8 and 16 for proposed work. The improvement of proposed work is also presented. The QC is 5.88% to 70.9% improved, no. of gate is 60% to 83.33% improved with compared to latest reported result.