Seminarium Fizyki Materii Skondensowanej

The activity of nerve systems and brains in living organisms is based onan excitable chemical dynamics. My seminar will be concerned withinformation processing with Belousov-Zhabotinsky (BZ) reaction proceedingin a non-homogeneous medium. The time evolution of excitations in suchmedium seems qualitatively similar to propagation of nerve signals. I willdiscuss different methods of information coding in BZ medium. Chemicalrealizations of the basic logic gates for different strategies ofinformation coding will be presented. This demonstrates that the chemicalcomputing with reaction-diffusion medium is universal. In thereaction-diffusion computing the structure of medium is as important as thedynamics of chemical reactions involved. Some structures interesting forinformation processing operations can be automatically generated inmicrofluidic reactors. Concluding the seminar I will discuss classifiersconstructed with a chemical medium and present a strategy of their trainingto achieve the required functionality.