LONDON – The chaos that results from non-linear mathematics could have a part to play in semiconductor logic, according to researchers drawn from universities in the United States and India, and a startup company called ChaoLogix.
The research team has demonstrated "chaotic" devices built in silicon and have presented their findings in Chaos, a journal published by the American Institute of Physics.
The research uses nonlinear relations to create a device that can generate all possible fundamental logic gate outputs. This forms the basis of the design of a dynamical computing device, a so-called chaogate, which can rapidly become any desired logic gate. The researchers and the startup indicate that the development could have particular significance for data security applications.
The example is given of a two-input, one output device that can be NOR, NAND, and XOR and its functionality is controlled in a VLSI design by control voltages through analog multiplexing circuitry. The authors have used non-linear dynamics to encode and manipulate inputs to produce a a wide variety of outputs. The set of desired outputs are then mapped to the system inputs and initial conditions and to their desired outputs.
The lead author is William Ditto, chair of the School of Biological and Health Systems Engineering, Arizona State University, who also serves as chief technology officer of ChaoLogix Inc. (Gainesville, Florida). Co-authors include Sudeshna Sinha of the Indian Institute of Science Education and Research at Chandhaghar, India and Krishnamurthy Murali of Anna University, Chennai, India.