Spiral Wave Formation in Three-Dimensional Excitable Media | Zendy

Takashi Amemiya | Zendy; Sándor Kádár | Zendy; Petteri Kettunen | Zendy; Kenneth Showalter | Zendy

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Spiral Wave Formation in Three-Dimensional Excitable Media

Author(s) -

Takashi Amemiya,

Sándor Kádár,

Petteri Kettunen,

Kenneth Showalter

Publication year - 1996

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.77.3244

Subject(s) - excitable medium , physics , spiral wave , scroll , spiral (railway) , perturbation (astronomy) , mechanics , belousov–zhabotinsky reaction , mechanical wave , optics , wave propagation , classical mechanics , longitudinal wave , quantum mechanics , mathematical analysis , mathematics , thermodynamics , archaeology , history

A mechanism for the generation of spiral waves in three-dimensional excitable media is described. Experiments using the photosensitive Belousov-Zhabotinsky reaction show that circular or spiral waves appear in the wake of a propagating wave following a local perturbation in illumination intensity. The induced waves arise from three-dimensional scroll waves striking the upper boundary of the excitable medium. Spiral waves are formed over a range of illumination intensities and perturbation times which place the induced wave in the vulnerable region of the refractory wave back. [S0031-9007(96)01342-7]

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