Design of 3-D Quantum-dot Cellular Automata Adders

Weiqiang Liu; Earl E. Swartzlander Jr.

doi:10.1587/elex.12.20150195

This article has now been updated. Please use the final version.

Design of 3-D Quantum-dot Cellular Automata Adders

Weiqiang Liu, Earl E. Swartzlander Jr.

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Keywords: Quantum-dot cellular automata, three dimensional, adder, majority logic

JOURNAL FREE ACCESS Advance online publication

Article ID: 12.20150195

DOI https://doi.org/10.1587/elex.12.20150195

The final version of this article is now available: Vol. 12 (2015), No. 6 pp. 20150195-20150195

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Abstract

A three-dimensional (3-D) QCA architecture is proposed in this express. The design of a 3-D quantum-dot cellular automata (QCA) full adder based on 3-D inverters and majority gates is presented and compared with its 2-D counterparts. The 3-D adder uses over 46% less cells and occupies 40% less area compared with the best 2-D design. The proposed 3-D QCA architecture offers an additional dimension for computation, which is not available in current CMOS technology.

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