Colored noise-enhanced intrinsic stochastic oscillations in CO oxidation on nanometer-sized Pd particles

• 来源期刊: 中国科学B辑(英文版)
• 年，卷（期）: 2009,（7）
• 页码范围: 887-892
• 页数: 6页
• 语种: 英文
• DOI: 10.1007/s11426-009-0057-4

摘要

How colored Gaussian noise (CN) affects the intrinsic stochastic oscillations (ISO) of CO oxidation on a nm-sized Pd particle is studied.It is found that the optimal ISO can be enhanced not only by a CN with appropriate noise intensity,but by a CN with appropriate correlation times.Moreover,the optimal ISO can be most greatly enhanced by the CN when the noise intensity or the correlation time is optimal.This result shows that external noise may,via its interplay with the internal noise of the system,play a constructive role in the ISO of the system,and the ISO can employ the external noise to reach a best oscillation performance.