QCA – TechConnect Briefs

Optimized FFT QCA Implementation using Five-input Majority Gate

Akeela R., Santa Clara University, US

Presenting novel designs for a Ripple Carry Adder, a Subtractor, and a Pipelined Array Multiplier using the Five-input Majority Gate (MAJ5) in Quantum-dor Cellular Automata (QCA). These designs are then used to implement the Fast [...]

A Five Input Majority Gate in Quantum-Dot Cellular Automatta

Akeela R., Wagh M.D., Lehigh University, US

We present a five input majority gate (MAJ5) designed in the quantum-dot cellular automata (QCA) technology. Unlike previous designs, our design is planer, uses integral cell placement and allows inputs and outputs from the peripheral [...]

Enhancement of Defect Tolerance in the QCA-based Programmable Logic Array (PLA)

Notsu T., Miura K., Nakamae K., Osaka University, JP

In this study we analyze the precedent AND/OR plane cell of a programmable logic array (PLA) based on the quantum-dot cellular automata (QCA), then propose a modified layout that has better defect tolerance. We analyzed [...]

The Computational Abilities of Random Magnetic Structures

Thenappan P., Madala S., Lusth J.C., University of Arkansas, US

In this paper, we investigate the computational abilities of random magnetic structures. Magnetic Quantum-dot Cellular Automata have the following advantages. They are simpler to fabricate and inputs are easier to control during computations. However, we [...]