Amplification of Fluctuations in Unstable Systems with Disorder

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• 作者：Prabhat K. Jaiswal ; Manish Vashishtha ; Rajesh Khanna ; Sanjay Puri
• 刊名：Journal of Physical Chemistry B
• 出版年：2011
• 出版时间：April 21, 2011
• 年：2011
• 卷：115
• 期：15
• 页码：4399-4403
• 全文大小：761K
• 年卷期：v.115,no.15(April 21, 2011)
• ISSN：1520-5207

文摘

We study the early stage kinetics of thermodynamically unstable systems with quenched disorder. We show analytically that the growth of initial fluctuations is amplified by the presence of disorder. This is confirmed by numerical simulations of morphological phase separation in thin liquid films and spinodal decomposition in binary mixtures. We also discuss the experimental implications of our results.