Macroscopic limit cycle via a noise-induced phase transition

被引:1
|
作者
Kawai, R [1 ]
Sailer, X [1 ]
Schimansky-Geier, L [1 ]
机构
[1] Univ Alabama, Dept Phys, Birmingham, AL 35294 USA
关键词
nonequilibrium phase transition; noise-induced phase transition; nonlinear dynamical systems; stochastic processes; Hopf bifurcation; pitchfork bifurcation;
D O I
10.1117/12.490192
中图分类号
O59 [应用物理学];
学科分类号
摘要
Bistability generated via a noise-induced phase transition is reexamined from the view of macroscopic dynamical systems, which clarifies the role of fluctuation better than the conventional Fokker-Plank or Langevin equation approach. Using this approach, we investigated the spatially-extended systems with two degrees of freedom per site. The model systems undergo a noise-induced phase transition through a Hopf bifurcation, leading to a macroscopic limit cycle motion similar to the deterministic relaxation oscillation.
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页码:173 / 181
页数:9
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