Irregular excitation patterns in reaction-diffusion systems due to perturbation by secondary pacemakers.
Irregular excitation patterns in reaction-diffusion systems due to perturbation by secondary pacemakers.
复制标题
由于次级起搏器的扰动导致反应扩散系统中的不规则激发模式
DOI:
10.1103/physreve.87.042904
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
P. Maass
中科院分区:
文献类型:
--
作者:
C. Lenk;M. Einax;P. Maass
Spatiotemporal excitation patterns in the FitzHugh-Nagumo model are studied, which result from the disturbance of a primary pacemaker by a secondary pacemaker. The primary and secondary pacemakers generate regular waves with frequenciesand, respectively. The pacemakers are spatially separated, but waves emanating from them encounter each other via a small bridge. This leads to three different types I–III of irregular excitation patterns in disjunct domains of theplane. Types I and II are caused by detachments of waves coming from the two pacemakers at corners of the bridge. Type III irregularities are confined to a boundary region of the system and originate from a partial penetration of the primary waves into a space, where circular wave fronts from the secondary pacemaker prevail. For this type, local frequencies can significantly exceedand. The degree of irregularity found for the three different types is quantified by the entropy of the local frequency distribution and an order parameter for phase coherence.
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影响因子:
3.4
作者:
J. Starobin;Y. Zilberter;E. M. Rusnak;C. Starmer
通讯作者:
J. Starobin;Y. Zilberter;E. M. Rusnak;C. Starmer
影响因子:
20.1
作者:
Wu, TJ;Yashima, M;Chen, PS
通讯作者:
Chen, PS
影响因子:
37.8
作者:
Ikeda,T;Czer,L;Trento,A;Hwang,C;Ong,JJ;Hough,D;Fishbein,MC;Mandel,WJ;Karagueuzian,HS;Chen,PS
通讯作者:
Chen,PS
影响因子:
37.8
作者:
Mandapati, R;Skanes, A;Jalife, J
通讯作者:
Jalife, J
DOI:
10.1016/j.physd.2008.06.012
发表时间:
2009-06
期刊:
Physica D: Nonlinear Phenomena
影响因子:
--
作者:
Henggui Zhang;C. Garratt;S. Kharche;A. Holden
通讯作者:
Henggui Zhang;C. Garratt;S. Kharche;A. Holden