title: Suppression of spirals and turbulence in inhomogeneous excitable media.
abstract: Suppression of spiral and turbulence in inhomogeneous media due to local heterogeneity with higher excitability is investigated numerically. When the inhomogeneity is small, control tactics by boundary periodic forcing (BPF) is effective against the existing spiral and turbulence. When the inhomogeneity of excitability is large, a rotating electric field (REF) is utilized to "smooth" regional heterogeneity based on driven synchronization. Consequently, a control approach combining BPF with REF is proposed to suppress the spiral and turbulence. The underlying mechanism of successful suppression is discussed in terms of dispersion relation.
authors: Department of Physics, HangZhou Dianzi University, Hangzhou 310018, China. jxchen@hdu.edu.cn
authors: Jiang-Xing
authors: JX
authors: Chen
authors: Jun-Wen
authors: JW
authors: Mao
authors: Bambi
authors: B
authors: Hu
authors: Jiang-Rong
authors: JR
authors: Xu
authors: Ya-Feng
authors: YF
authors: He
authors: Yuan
authors: Y
authors: Li
authors: Xiao-Ping
authors: XP
authors: Yuan