Noise-Dependent Stability of the Synchronized State in a Coupled System of Active Rotators

• 作者: Axel Pelster Ralf Wessel Sebastian F. Brandt
• 来源期刊: 凝固态物理国际期刊(英文)
• 学科: 医学
• 关键词: STOCHASTIC Analysis Methods SYNCHRONIZATION COUPLED Oscillators
• 年，卷（期）: ngtwlgjqkyw_2011,（3）
• 页码范围: 88-96
• 页数: 9页
• 分类号: R73

摘要

We consider a Kuramoto model for the dynamics of an excitable system consisting of two coupled active rotators. Depending on both the coupling strength and the noise, the two rotators can be in a synchronized or desynchronized state. The synchronized state of the system is most stable for intermediate noise intensity in the sense that the coupling strength required to desynchronize the system is maximal at this noise level. We evaluate the phase boundary between synchronized and desynchronized states through numerical and analytical calculations.