
Please use this identifier to cite or link to this item:
http://hdl.handle.net/123456789/3054
Title: | Noise enhanced activity in a complex network |
Authors: | Choudhary, Anshul Kohar, Vivek Sinha, Sudeshna |
Keywords: | Statistical and Nonlinear Physics Complex network Typically chaotic |
Issue Date: | 2014 |
Publisher: | Springer |
Citation: | European Physical Journal B, 87(9) |
Abstract: | We consider the influence of local noise on a generalized network of populations having positive and negative feedbacks. The population dynamics at the nodes is nonlinear, typically chaotic, and allows cessation of activity if the population falls below a threshold value. We investigate the global stability of this large interactive system, as indicated by the average number of nodal populations that manage to remain active. Our central result is that the probability of obtaining active nodes in this network is significantly enhanced under fluctuations. Further, we find a sharp transition in the number of active nodes as noise strength is varied, along with clearly evident scaling behaviour near the critical noise strength. Lastly, we also observe noise induced temporal coherence in the active sub-network, namely, there is an enhancement in synchrony among the nodes at an intermediate noise strength. |
URI: | https://link.springer.com/article/10.1140%2Fepjb%2Fe2014-50382-y http://hdl.handle.net/123456789/3054 |
Appears in Collections: | Research Articles |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
need to add pdf....odt | 8.12 kB | OpenDocument Text | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.