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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:2005-12-24 Published:2005-12-24

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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

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