Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2006-07-05
Phys. Lett. A 362, 115(2007)
Physics
Condensed Matter
Statistical Mechanics
5 pages, and 3 figures
Scientific paper
In this paper, by extending the concept of Kuramoto oscillator to the left-invariant flow on general Lie group, we investigate the generalized phase synchronization on networks. The analyses and simulations of some typical dynamical systems on Watts-Strogatz networks are given, including the $n$-dimensional torus, the identity component of 3-dimensional general linear group, the special unitary group, and the special orthogonal group. In all cases, the greater disorder of networks will predict better synchronizability, and the small-world effect ensures the global synchronization for sufficiently large coupling strength. The collective synchronized behaviors of many dynamical systems, such as the integrable systems, the two-state quantum systems and the top systems, can be described by the present phase synchronization frame. In addition, it is intuitive that the low-dimensional systems are more easily to synchronize, however, to our surprise, we found that the high-dimensional systems display obviously synchronized behaviors in regular networks, while these phenomena can not be observed in low-dimensional systems.
Gu Zhi-Ming
Wang Bing-Hong
Zhao Ming
Zhou Tianchun
Zhu Chen-Ping
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