On fluctuation in reaction-diffusion systems affected by pressure

J.-l. Du and F.-s. Chen

Physica A: Statistical Mechanics and its Applications, 1994, vol. 208, issue 2, 205-214

Abstract: According to nonequilibrium statistical theory and density operator equations, an equation about the characteristic function of density in reaction-diffusion systems affected by pressure is derived by calculating the time variation of the probability distribution function immediately. This equation has more nonlinear terms in comparison with the generalized master equation in phenomenological theory and then has further generality. We have used the equation to analyse the pressure effects on the dynamical behaviors of fluctuations about a homogeneous stationary state by taking the helium nuclear reaction model inside stars as an example, the results of which show that the pressure effects may lead to a supercritical oscillating structure with time.

Date: 1994
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:208:y:1994:i:2:p:205-214

DOI: 10.1016/0378-4371(94)00012-3

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