Nonlinear Theory of Sound Waves near Critical Points. I : New Dynamic Regime
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概要
- 論文の詳細を見る
Nonlinear effects of sound waves are investigated in the neighborhood of second order phase transition. When the amplitude of sound waves is larger than a characteristic amplitude, the system crosses over from the linear into the nonlinear response regime as the reduced temperature is made smaller than a crossover reduced temperature. Then, large-scale critical fluctuations experience periodic enhancement. This is because the local temperature, which oscillates in the presence of sound waves, can be lowered below T_c periodically in short time intervals with the acoustic frequency. Namely, the system undergoes periodic spinodal decomposition. In the ordered phase the average order parameter exhibits parametrically forced oscillation if the order parameter is not conserved.
- 理論物理学刊行会の論文
- 1981-10-25
著者
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Onuki Akira
Department Of Physics Faculty Of Science University Of Tokyo:department Of Physics Kyushu University
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Onuki Akira
Department Of Physics Kyushu University
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ONUKI Akira
Department of Physics, Kyushu University
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ONUKI Akira
Research Institute for Fundamental Physics, Kyoto University
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