Mathematics – Analysis of PDEs
Scientific paper
2010-04-24
Mathematics
Analysis of PDEs
Scientific paper
We present the second of two articles on the small volume fraction limit of a nonlocal Cahn-Hilliard functional introduced to model microphase separation of diblock copolymers. After having established the results for the sharp-interface version of the functional (arXiv:0907.2224), we consider here the full diffuse-interface functional and address the limit in which epsilon and the volume fraction tend to zero but the number of minority phases (called particles) remains O(1). Using the language of Gamma-convergence, we focus on two levels of this convergence, and derive first- and second-order effective energies, whose energy landscapes are simpler and more transparent. These limiting energies are only finite on weighted sums of delta functions, corresponding to the concentration of mass into `point particles'. At the highest level, the effective energy is entirely local and contains information about the size of each particle but no information about their spatial distribution. At the next level we encounter a Coulomb-like interaction between the particles, which is responsible for the pattern formation. We present the results in three dimensions and comment on their two-dimensional analogues.
Choksi Rustum
Peletier Mark A.
No associations
LandOfFree
Small Volume Fraction Limit of the Diblock Copolymer Problem: II. Diffuse-Interface Functional does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Small Volume Fraction Limit of the Diblock Copolymer Problem: II. Diffuse-Interface Functional, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Small Volume Fraction Limit of the Diblock Copolymer Problem: II. Diffuse-Interface Functional will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-387131