Optimized designs of reversible arithmetic logic unit

Authors: ALI BOLHASSANI, MAJID HAGHPARAST

Abstract: Reversible logic has emerged as a promising paradigm in various domains, such as low power VLSI design, quantum cellular automata, and nanotechnology-based systems. The arithmetic logic unit (ALU) is one of the main components of any central processing unit. In this paper we propose two new reversible ALUs using elementary quantum gates, with more functions compared to the existing designs. The results show that the proposed designs are better than the existing counterparts in terms of cost-metrics and the number of functions generated. The proposed reversible ALUs can be used in the implementation of quantum computers. All the designs are with nanometric scales.

Keywords: Reversible logic, quantum computing, quantum logic gates, arithmetic logic unit, reversible arithmetic logic unit

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