Eur. Phys. J. B (2013) 86: 264 (2013)
https://doi.org/10.1140/epjb/e2013-40054-y

Regular Article

Information resonance in a model excitable system

¹ Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
² Faculty of Mathematics and Life Science, UKSW, 01-938 Warsaw, Poland
³ Physics Laboratory, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland
⁴ Université Pierre et Marie Curie - Paris 6, Laboratoire de Physique Théorique de la Matière Condensée (LPTMC), 4 place Jussieu, case courrier 121, 75252 Paris Cedex 05, France
⁵ CNRS, LPTMC, UMR 7600 Paris, France

^a e-mail: jgorecki@ichf.edu.pl

Received: 23 January 2013
Received in final form: 18 April 2013
Published online: 12 June 2013

Abstract

We consider a simple mesoscopic model of an excitable thermochemical system for which the system temperature as a function of time has a form of irregular spikes. The interspike intervals are mapped onto elements of a formal alphabet. The time evolution of system temperature is represented by a string over this alphabet. We demonstrate that the entropy of such string reaches a minimum for the values of model parameters where the coherence resonance of interspike intervals is observed.