Physics – Condensed Matter – Statistical Mechanics
Scientific paper
1999-11-13
Physics
Condensed Matter
Statistical Mechanics
Scientific paper
10.1103/PhysRevE.61.371
We study the synchronization phenomena in a system of globally coupled oscillators with time delay in the coupling. The self-consistency equations for the order parameter are derived, which depend explicitly on the amount of delay. Analysis of these equations reveals that the system in general exhibits discontinuous transitions in addition to the usual continuous transition, between the incoherent state and a multitude of coherent states with different synchronization frequencies. In particular, the phase diagram is obtained on the plane of the coupling strength and the delay time, and ubiquity of multistability as well as suppression of the synchronization frequency is manifested. Numerical simulations are also performed to give consistent results.
Choi Min-Young
Hong Hanjing
Kim Dongseok
Kim Hyeong-Jin
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