Abstract
We show how to use excitable regimes mediated by localized structures (LSs) to perform AND, OR and NOT logical operations providing full logical functionality. Our scheme is general and can be implemented in any physical system displaying LSs. In particular, LSs in nonlinear photonic devices can be used for all-optical computing applications where several reconfigurable logic gates can be implemented in the transverse plane of a single device, allowing for parallel computing.
Highlights
Electronic computers are prevalent all around us and have been immensely successful in shaping our technological world
We have analyzed the possibility of creating logic gates using the dynamics of Localized structures (LSs)
It is important to stress that this proof of concept is independent of the specific model considered here and that logic operations could be realized in any system displaying LSs, even beyond optics
Summary
Electronic computers are prevalent all around us and have been immensely successful in shaping our technological world. Localized structures (LSs) in dissipative media, known as dissipative solitons, are commonplace in many spatially extended systems, such as chemical reactions, gas discharges or fluids [13] They form in optical cavities due to the interplay between diffraction, nonlinearity, driving and dissipation. LS have been suggested as a potentially useful strategy for information storage [14] This is especially attractive in nonlinear photonics after LSs have been observed in semiconductor lasers [15, 16], but the general concept of using LSs to carry information is not restricted to optics. The different mechanisms discussed above makes excitability mediated by LSs highly accessible to a wide variety of systems in optics and beyond
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