Droplet phases in non-local Ginzburg-Landau models with Coulomb repulsion in two dimensions

Details Droplet phases in non-local Ginzburg-Landau models with Coulomb repulsion in two dimensions Droplet phases in non-local Ginzburg-Landau models with Coulomb repulsion in two dimensions

2009-05-15

arxiv.org/abs/0905.2614v1

Commun. Math. Phys. 299, 45-87 (2010)

Nonlinear Sciences

Pattern Formation and Solitons

48 pages, 4 figures

Scientific paper

10.1007/s00220-010-1094-8

We establish the behavior of the energy of minimizers of non-local Ginzburg-Landau energies with Coulomb repulsion in two space dimensions near the onset of multi-droplet patterns. Under suitable scaling of the background charge density with vanishing surface tension the non-local Ginzburg-Landau energy becomes asymptotically equivalent to a sharp interface energy with screened Coulomb interaction. Near the onset the minimizers of the sharp interface energy consist of nearly identical circular droplets of small size separated by large distances. In the limit the droplets become uniformly distributed throughout the domain. The precise asymptotic limits of the bifurcation threshold, the minimal energy, the droplet radii, and the droplet density are obtained.

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