Coherence resonance in a spatial prisoner's dilemma game

Abstract

We study effects of additive spatiotemporal random variations, introduced to the payoffs of a spatial prisoner's dilemma game, on the evolution of cooperation. In the absence of explicit payoff variations the system exhibits a phase transition from a mixed state of cooperators and defectors to a homogenous state of defectors belonging to the directed percolation universality class. By introducing nonzero random variations to the payoffs, this phase transition can be reverted in a resonance-like manner depending on the variance of noise, thus marking coherence resonance in the system. We argue that explicit random payoff variations present a viable mechanism that promotes cooperation for defection temptation values substantially exceeding the one marking the transition point to homogeneity by deterministic payoffs.

Keywords

dinamični sistemi;ekscitabilni sistemi;resonanca;intenziteta hrupa;prostorska resonanca;inherentna prostorska resonanca;prostorska dekoherenca;ne zaključna dela;dynamic systems;noise;spatiotemporal noise;intensity;spatial resonance;inherent spatial resonance;spatial decoherence;excitable media;

Data

Language:	English
Year of publishing:	2006
Typology:	1.01 - Original Scientific Article
Organization:	UM PEF - Faculty of Education
UDC:	534.83:531.3
COBISS:	14504456
ISSN:	1367-2630
Views:	1605
Downloads:	417
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary keywords:	dinamični sistemi;ekscitabilni sistemi;resonanca;intenziteta hrupa;prostorska resonanca;inherentna prostorska resonanca;prostorska dekoherenca;
URN:	URN:SI:UM:
Type (COBISS):	Article
Pages:	str. 1-8
Volume:	ǂVol. ǂ8
Issue:	22
Chronology:	2006
DOI:	10.1088/1367-2630/8/2/022
ID:	8724186