Selfreproduction in cellular automata university of york. Quantum cellular automata qca consist of an array of identical, finite di mensional. Some provide more intuitions and examples to their own main results. Selfreproduction in cellular automata is discussed with reference to the models of yon neumann and codd. Langton, among others, we introduce the first examples of asynchronous selfreproduction in cellular automata. Computation and constructionuniversality in cellular automata ca, first studied by. The conclusion is drawn that although the capacity for universal construction is a sufficient condition for selfreproduction, it is not a necessary condition. The action of enzymes is simulated by turing machines acting as molecular automata or computers. For example, in a 1dimensional cellular automaton like the examples below, the. Cellular automata and groups tullio ceccherinisilberstein.
Universal construction on selftimed cellular automata springerlink. Pdf selfadaptive selfreproductions in cellular automata. Pdf selfreproduction in asynchronous cellular automata. These examples show that provocative analogies to the concepts of chemical.
Selfreproduction in asynchronous cellular automata. Selfreproduction, evolution and sex in cellular automata. Two selfreplicators for nobili cellular automata are presented. Selfreproduction in cellular automata has been extensively studied over the decades, with the aim of exploring the underlying logic structure of reproduction behind living organisms. Universal computation in simple onedimensional cellular automata.
A cellular automaton is a discrete model studied in computer science, mathematics, physics. In this paper we free all cellular automata models of selfreproduction as well as all. Springer nature is making sarscov2 and covid19 research free. Slightly more liberal criteria for what constitutes genuine selfreproduction are introduced, and a simple selfreproducing. Selfreproduction in small cellular automata john byl department of mathematical sciences, trini. Selfreproduction in cellular automata sciencedirect.