Internal Noise Stochastic Resonance in a Mesoscopic Oscillating Chemical Reaction System

Chem. J. Chinese Universities ›› 2004, Vol. 25 ›› Issue (8): 1477.

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Internal Noise Stochastic Resonance in a Mesoscopic Oscillating Chemical Reaction System

GONG Yu-Bing^1,2, HOU Zhong-Huai¹, XIN Hou-Wen¹

1. Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;
2. Department of Physics, Yantai Teachers University, Yantai 264025, China

Received:2003-11-24 Online:2004-08-24 Published:2004-08-24

Abstract

Abstract: The influence of internal noise on a mesoscopic oscillating chemical reaction system is numerically studied by using chemical Langevin equations. It is found that internal noise can induce reaction oscillations in the system when the corresponding deterministic system does not oscillate. With the change of the internal noise intensity,the signal-to-noise ratio of the noise-induced oscillation goes through a maximum,which shows the occurrence of internal noise stochastic resonance. Since the magnitude of the internal noise is changed via the variation of the system size,these phenomena also demonstrate a kind of system size resonance.

Key words: Mesoscopic oscillating chemical reaction system, Chemical Langevin equation, Internal noise stochastic resonance

CLC Number:

O664

TrendMD:

GONG Yu-Bing, HOU Zhong-Huai, XIN Hou-Wen . Internal Noise Stochastic Resonance in a Mesoscopic Oscillating Chemical Reaction System[J]. Chem. J. Chinese Universities, 2004, 25(8): 1477.

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Internal Noise Stochastic Resonance in a Mesoscopic Oscillating Chemical Reaction System

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