This paper mainly focuses on structures of arithmetic based on Quantum Cellular Automata (QCA). QCA is an emerging nanotechnology in the field of electronic circuits. It has the potential for attractive features such as high speed, minimum size, and reduced consumption of power than transistor based technologies. It is a basic building block based on nanotechnology that can be used to make logic gates wires and memories. Taking advantage of the unique capabilities of QCA, we able to design

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... esting computational architectures. The arithmetic structures are designed and simulated using QCADesignV2.0.3, a design and simulation tool for QCA.