Self-Similarity and Intermittency of Processes of Droplet Growths in Phase-Separating Systems : Condensed Matter and Statistical Physics

概要

論文の詳細を見る
The intermittency effect on the droplet growth rates, proposed previously [H. Furukawa, to be published in Phys. Rev. A] to explain the numerical simulation on highly degenerate system, is discussed on more firm basis. The droplet radius R grows effectively as R(t)∝t^a* with a* = w_1a_1+w_2a_2 (w_1+w_2=1), where a_l and a_2 are growth rate exponents of elementary processes and w_1 and w_2 are probabilities of finding corresponding processes. The intermittency growth rate is due to the self-similarity of the switching process of growth mechanisms in a small region of the system together with coarse-graining in time. The concentration-dependence of the exponent a* is discussed. The theoretical prediction for a binary fluid mixture is compared with previous experimental data.
理論物理学刊行会の論文
1984-03-25