Signal amplification of active rotators with phase-shifted coupling

Autor(es)

Liang, X. M. ^[1] ; Zhao, L. ^[1] ; Liu, Z. H. ^{[2, 3]}

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Math & Comp Sci, BR-13560970 Sao Carlos, SP - Brazil

^[2] E China Normal Univ, Inst Theoret Phys, Shanghai 200062 - Peoples R China

^[3] E China Normal Univ, Dept Phys, Shanghai 200062 - Peoples R China

• Tipo de documento: Artigo Científico
• Fonte: European Physical Journal B; v. 85, n. 6 JUN 2012.
• Citações Web of Science: 4

Resumo

In this paper, we study the signal amplification of coupled active rotators with phase-shifted coupling. We find that the system's response to the external subthreshold signal can be significantly affected by each of the two types of phase-shifted couplings: identical and non-identical phase-shifted couplings. Moreover, through both theoretical analysis and numerical simulations, we have figured out the optimal phase shift, at which the largest signal amplification is generated. These results show that the phase-shifted coupling plays an important role in regulating the system's response to the subthreshold signal. (AU)

• Processo FAPESP: 11/50151-0 - Fenômenos dinâmicos em redes complexas: fundamentos e aplicações
• Beneficiário: Elbert Einstein Nehrer Macau
• Linha de fomento: Auxílio à Pesquisa - Temático
• Processo FAPESP: 11/03631-6 - Comportamentos coletivos de neurônios em redes complexas
• Beneficiário: Zhao Liang
• Linha de fomento: Auxílio à Pesquisa - Pesquisador Visitante - Internacional