Anomalous Fluctuations near Nonequilibrium Soft Transitions. I : Homogeneous Transitions
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概要
- 論文の詳細を見る
A critical behavior of a nonequilibrium soft transition from a quiescent homogeneous state is investigated. A stochastic Ginzburg-Landau type equation for an order parameter is derived by eliminating irrelevant variables. Then there appears a new kind of fluctuating force through the mode coupling of the order parameter to the irrelevant variables. This fluctuating force has a quite different feature from external noises acting on the order parameter directly from outside, leading to four different critical regimes with different scalings and different critical.dimensionalities. This is due to the fact that the fluctuations generated by the mode coupling strongly depend on the order parameter so that the variance of the order parameter due to these fluctuations becomes small or remains to be constant as the critical point is approached in the ordered phase. As an actual example, the Oregonator of the Belousov-Zhabotinsky reaction is investigated.
- 理論物理学刊行会の論文
- 1981-06-25
著者
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Mori H
Faculty Of Engineering Kyushu Kyoritsu University
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Mori Hazime
Department Of Applied Physics Faculty Of Engineering Kyushu University
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TAKAYOSHI Kiyofumi
Department of Physics, Kyushu University
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Mashiyama Kazuko
Department Of Physics Faculty Of Science Yamaguchi University
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TAKAYOSHI Kiyohumi
Department of Physics, Kyushu University
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Takayoshi Kiyohumi
Department Of Physics Kyushu University
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Mashiyama Kazuko
Department of Physics, Kyushu University
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