Featured Research

from universities, journals, and other organizations

Disordered networks synchronise faster than small world networks

Date:
August 19, 2011
Source:
Springer
Summary:
Synchronization occurs when individual elements in a complex network behave in line with each other. This applies to real-life examples such as the way neurons fire during an epileptic seizure or the phenomenon of crickets falling into step with one another.

A study recently published in European Physical Journal B presents observations of how complex systems synchronise over time.

Synchronization occurs when individual elements in a complex network behave in line with each other. This applies to real-life examples such as the way neurons fire during an epileptic seizure or the phenomenon of crickets falling into step with one another.

In this study, Carsten Grabow and colleagues from the Max Planck Institute for Dynamics and Self-Organization in Gφttingen, Germany, created a model to test the speed of synchronisation of complex networks in collaboration with the Warwick Complexity Centre, UK. They tested this model using three very different oscillators acting on complex networks, which are known as Kuramoto, Rφssler and pulse-coupled oscillators. As a result, for all tested networks they showed that the structure of the coupling between network nodes determines the speed of synchronisation.

In short: the higher the disorder in the network, the faster the synchronisation. They subsequently verified this observation in real-life networks including an air-transported network, a social net-work and a human travel network. Given the great variety of networks used, the increase in the speed of synchronisation in line with increased disorder can be considered universal.

This result goes against previous observations, which showed that so-called small-world net-works, which consist of an intermediate structure of fully ordered and fully disordered networks, favour synchronisation. The small-world effect was famously applied to analysing social networks and gave rise to the theory that there are only six degrees of separation between people in a given country.

The authors are currently working on deriving a mathematical formula to predict which complex network would synchronise and how fast. Such an approach would require integrating parameters, including the network size and typical number of links per node, as well as the spread of the disorder introduced. This work could have real-life applications, for example, in measuring the robustness of the relaxation process in gene regulatory networks.


Story Source:

The above story is based on materials provided by Springer. Note: Materials may be edited for content and length.


Journal Reference:

  1. C. Grabow, S. Grosskinsky, M. Timme. Speed of complex network synchronization. The European Physical Journal B, 2011; DOI: 10.1140/epjb/e2011-20038-9

Cite This Page:

Springer. "Disordered networks synchronise faster than small world networks." ScienceDaily. ScienceDaily, 19 August 2011. <www.sciencedaily.com/releases/2011/08/110818130210.htm>.
Springer. (2011, August 19). Disordered networks synchronise faster than small world networks. ScienceDaily. Retrieved July 22, 2014 from www.sciencedaily.com/releases/2011/08/110818130210.htm
Springer. "Disordered networks synchronise faster than small world networks." ScienceDaily. www.sciencedaily.com/releases/2011/08/110818130210.htm (accessed July 22, 2014).

Share This




More Computers & Math News

Tuesday, July 22, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Google Plans To Speed Up Web Pages With New Image Format

Google Plans To Speed Up Web Pages With New Image Format

Newsy (July 21, 2014) — Google is using compressed images in WebP format to help boost page loading times. The files are 25-to-34 percent smaller than PNGs and JPEGs. Video provided by Newsy
Powered by NewsLook.com
Uruguayan Creates Chess Game for Multiple Opponents

Uruguayan Creates Chess Game for Multiple Opponents

AFP (July 19, 2014) — It no longer takes two to play chess – or at least according to a new version of the game invented by Uruguayan Gabriel Baldi, where up to four opponents can play. Duration: 00:31 Video provided by AFP
Powered by NewsLook.com
Clock Ticks Down on Internet Speed Debate

Clock Ticks Down on Internet Speed Debate

Reuters - US Online Video (July 18, 2014) — The FCC received more than 800,000 comments on whether and how internet speeds should be regulated, even crashing its system. Lily Jamali reports. Video provided by Reuters
Powered by NewsLook.com
Google Won't Call Games With In-App Add-Ons Free, Apple Will

Google Won't Call Games With In-App Add-Ons Free, Apple Will

Newsy (July 18, 2014) — The European Commission asked Google and Apple not to label apps "free" if they include in-app purchases. Google has complied; Apple has resisted. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins