TY - JOUR
T1 - Chaotic wave trains in an oscillatory/excitable medium
AU - Rabinovitch, A.
AU - Gutman, M.
AU - Biton, Y.
AU - Aviram, I.
PY - 2006/12/18
Y1 - 2006/12/18
N2 - We study the chaotic dynamics of a heterogeneous reaction-diffusion medium composed of two uniform regions: one oscillatory, and the other excitable. It is shown that, by altering the diffusion coefficient, local chaotic oscillations can be induced at the interface between regions, which in turn, generate different chaotic sequences of pulses traveling in the excitable region. We analyze the properties of the local chaotic driver, as well as the diffusion-induced transitions. A procedure based on the abnormal frequency-locking phenomenon is proposed for controlling such sequences. Relevance of the obtained results to cardiac dynamics is briefly discussed.
AB - We study the chaotic dynamics of a heterogeneous reaction-diffusion medium composed of two uniform regions: one oscillatory, and the other excitable. It is shown that, by altering the diffusion coefficient, local chaotic oscillations can be induced at the interface between regions, which in turn, generate different chaotic sequences of pulses traveling in the excitable region. We analyze the properties of the local chaotic driver, as well as the diffusion-induced transitions. A procedure based on the abnormal frequency-locking phenomenon is proposed for controlling such sequences. Relevance of the obtained results to cardiac dynamics is briefly discussed.
UR - http://www.scopus.com/inward/record.url?scp=33751008854&partnerID=8YFLogxK
U2 - 10.1016/j.physleta.2006.07.051
DO - 10.1016/j.physleta.2006.07.051
M3 - Article
AN - SCOPUS:33751008854
SN - 0375-9601
VL - 360
SP - 84
EP - 91
JO - Physics Letters, Section A: General, Atomic and Solid State Physics
JF - Physics Letters, Section A: General, Atomic and Solid State Physics
IS - 1
ER -