title: Noise-controlled self-replicating patterns.
abstract: We present novel numerical evidence of spot self-replication controlled by noise in a simple autocatalytic reaction-diffusion system. The system dynamics exhibits a noise controlled transition from stripe growth to spot replication. The growth kinetics is also controlled by noise, and there is an optimal noise intensity for which the multiplication rate of spots is maximal. For larger noise intensities, the spots become unstable and the system is attracted by the trivial steady state. Some of the effects are reminiscent of both polymer chain and cell colony formation in random environments.
authors.affiliation: Centro de Astrobiología (CSIC-INTA), Carretera de Ajalvir kilómetro 4, 28850 Torrejón de Ardoz, Madrid, Spain. lesmeszf@inta.es
authors.forename: Felipe
authors.initials: F
authors.lastname: Lesmes
authors.forename: David
authors.initials: D
authors.lastname: Hochberg
authors.forename: Federico
authors.initials: F
authors.lastname: Morán
authors.forename: Juan
authors.initials: J
authors.lastname: Pérez-Mercader