Abstract
We study the properties of the wavefronts induced by temporal Gaussian white noise in a subexcitable medium with experimental observation and numerical simulation. Two characteristic properties were observed in the experiment. First, at an optimal noise level, the wavefronts triggered by noise have the best periodicity, similar to the so-called stochastic resonance phenomenon. Second, the average velocities of wavefront propagations monotonously increase with the noise level. These properties of spatiotemporal dynamics can be qualitatively verified in the numerical simulation.
Original language | English (US) |
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Pages (from-to) | 194-200 |
Number of pages | 7 |
Journal | Physica D: Nonlinear Phenomena |
Volume | 199 |
Issue number | 1-2 |
DOIs | |
State | Published - Dec 1 2004 |
Event | Trends in Pattern Formation: Stability, Control and Fluctuation - Dresden, Germany Duration: Aug 25 2003 → Sep 19 2003 |
Keywords
- Subexcitable medium
- Synchronization
- Wave velocity
- White noise
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Mathematical Physics
- Condensed Matter Physics
- Applied Mathematics