Abstract—Reversible logic allows low power dissipating circuit design and founds its application in cryptography, digital signal processing, quantum and optical information processing. This paper presents a novel quantum cost efficient reversible BCD adder for nanotechnology based systems using PFAG gate. It has been demonstrated that the proposed design offers less hardware complexity and requires minimum number of garbage outputs than the existing counterparts. The remarkable property of the proposed designs is that its quantum realization is given in NMR technology.

Index Terms—Reversible Logic, quantum cost, garbage output, BCD adder.

The authors are with the Institute of Information Technology, University of Dhaka, Bangladesh. (e-mail: saiful@iit.du.ac.bd; mail:jewel@univdhaka.edu; e-mail: zerin@univdhaka.edu).

Cite: Md. Saiful Islam, Member, IACSIT, Mohd. Zulfiquar Hafiz, and Zerina Begum, "Quantum Cost Efficient Reversible BCD Adder for Nanotechnology Based Systems," International Journal of Computer and Electrical Engineering vol. 4, no. 1, pp. 10-13, 2012.