Marko Gosak (Avtor), Dean Korošak (Avtor), Marko Marhl (Avtor)

Povzetek

We have analyzed the stochastic resonance phenomenon on spatial networks of bistable and excitable oscillators, which are connected according to their location and the amplitude of external forcing. By smoothly altering the network topology from a scale-free (SF) network with dominating long-range connections to a network where principally only adjacent oscillators are connected, we reveal that besides an optimal noise intensity, there is also a most favorable interaction topology at which the best correlation between the response of the network and the imposed weak external forcing is achieved. For various distributions of the amplitudes of external forcing, the optimal topology is always found in the intermediate regime between the highly heterogeneous SF network and the strong geometric regime. Our findings thus indicate that a suitable number of hubs and with that an optimal ratio between short- and long-range connections is necessary in order to obtain the best global response of a spatial network. Furthermore, we link the existence of the optimal interaction topology to a critical point indicating the transition from a long-range interactions-dominated network to a more lattice-like network structure.

Ključne besede

fizika;stohastična resonanca;kompleksne mreže;physics;stochastic resonance;complex networks;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UM FNM - Fakulteta za naravoslovje in matematiko
Založnik: IOP Publishing
UDK: 53
COBISS: 18087432 Povezava se bo odprla v novem oknu
ISSN: 1367-2630
Št. ogledov: 1785
Št. prenosov: 584
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: fizika;stohastična resonanca;kompleksne mreže;
URN: URN:SI:UM:
Vrsta dela (COBISS): Znanstveno delo
Strani: str. 013012-1-013012-15
Letnik: ǂVol. ǂ13
Zvezek: ǂissue ǂ1
Čas izdaje: Jan. 2011
DOI: 10.1088/1367-2630/13/1/013012
ID: 8723766