Chem. J. Chinese Universities ›› 2005, Vol. 26 ›› Issue (12): 2331.

• Articles • Previous Articles     Next Articles

Influence of Properties of Colored Noise on Stochastic Resonance in Pt(100)/NO+CO Reduction System

GONG Yu-Bing1,2, HOU Zhong-Huai1, XIN Hou-Wen1*   

  1. 1. Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;
    2. Department of Physics, Yantai Teachers College, Yantai 264025, China
  • Received:2004-12-27 Online:1905-03-14 Published:1905-03-14
  • Contact: XIN Hou-Wen;E-mail:nclxin@mail.ustc.edu.cn

Abstract:

Under the conditions of constant temperature and the value of NO partial pressure pNO which is tuned close to Hopf bifurcation point, the dynamics of Pt(100)/NO+CO system modulated by colored noise is studied. The colored noise-induced oscillations and the stochastic resonance are observed by using numerical simulations. The influences of intensity and correlation time of colored noise on the stochastic resonance are discussed. A novel result is found that the noise intensity for the occurrence of stochastic resonance initially increases and then decreases with increasing the fixed correlation time.

Key words: Colored noise; Stochastic resonance; Pt(100)/NO+CO reaction system; Supercritical Hopf bifurcation, Colored noise, Stochastic resonance, Pt(100)/NO+CO reaction system, Supercritical Hopf bifurcation

CLC Number: 

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