Physics – Condensed Matter – Disordered Systems and Neural Networks
Scientific paper
2009-07-22
Physica D 239 (2010) 1909
Physics
Condensed Matter
Disordered Systems and Neural Networks
19 pages, 10 figures, the final version with a changed title, accepted in Physica D
Scientific paper
We have studied the synchronization induced by periodic inputs applied to the finite $N$-unit coupled bistable Langevin model which is subjected to cross-correlated additive and multiplicative noises. Effects on the synchronization of the system size ($N$), the coupling strength and the cross-correlation between additive and multiplicative noises have been investigated with the use of the semi-analytical augmented moment method (AMM) which is the second-order moment approximation for local and global variables [H. Hasegawa, Phys. Rev. E {\bf 67} (2003) 041903]. A linear analysis of the stationary solution of AMM equations shows that the stability is improved (degraded) by positive (negative) couplings. Results of the nonlinear bistable Langevin model are compared to those of the linear Langevin model.
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