Jy. Chen et al., Phase signal coupling induced n : m phase synchronization in drive-response oscillators - art. no. 036214, PHYS REV E, 6303(3), 2001, pp. 6214
We have studied phase synchronization between two identical Rossler oscilla
tors connected in the drive-response configuration by a single phase signal
. Before the transition to phase synchronization, the distribution of the t
ime interval between consecutive 2 pi jumps shows several sharp peaks. With
a strong phase signal coupling, the n:m phase synchronization between the
oscillators can be achieved. For the n not equal m phase synchronizing stat
e, some values of coupling strength result in a phenomenon characterized by
a reduction in the mean amplitude of the response termed amplitude reducti
on. In these regions, the mean rotation speed of the response remains appro
ximately constant while the locking ratio n:in varies.