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Adjustment of spiral drift by a travelling wave perturbation

Authors:	Ningjie?Wu author-information" > author-information__contact u-icon-before" > mailto:njwu@njnu.edu.cn" title=" njwu@njnu.edu.cn" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,Hongjun?Gao,Jun?Ma,Heping?Ying

Affiliation:	1.Jiangsu Key Laboratory for NSLSCS, School of Mathematical Sciences,Nanjing Normal University,Nanjing,China;2.Department of Physics,Lanzhou University of Technology,Lanzhou,China;3.Institute of Modern Physics and Department of Physics,Zhejiang University,Hangzhou,China

Abstract:	We apply a velocity-field approach to investigate the interaction between spiral waves and the travelling wave modulation of system excitability which leads to a prediction: the direction of the straight-line drift of spiral waves is linearly adjusted by the propagation direction of the travelling waves. Direct numerical computations of the Oregonator model and the formulas of drift-velocity field confirm the validity and robustness of our theoretical prediction.

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