English

Higher dimensional Ginzburg-Landau equations under weak anchoring boundary conditions

Analysis of PDEs 2017-11-01 v1

Abstract

For n3n\ge 3 and 0<ϵ10<\epsilon\le 1, let ΩRn\Omega\subset\mathbb R^n be a bounded smooth domain and uϵ:ΩRnR2u_\epsilon:\Omega \subset\R^n\to \mathbb R^2 solve the Ginzburg-Landau equation under the weak anchoring boundary condition: {Δuϵ=1ϵ2(1uϵ2)uϵ in  Ω,uϵν+λϵ(uϵgϵ)=0 on  Ω,\begin{cases} -\Delta u_\epsilon=\frac{1}{\epsilon^2}(1-|u_\epsilon|^2)u_\epsilon &\ {\rm{in}}\ \ \Omega, \frac{\partial u_\epsilon}{\partial\nu}+\lambda_\epsilon(u_\epsilon-g_\epsilon)=0 & \ {\rm{on}}\ \ \partial\Omega, \end{cases} where the anchoring strength parameter λϵ=Kϵα\lambda_\epsilon=K\epsilon^{-\alpha} for some K>0K>0 and α[0,1)\alpha\in [0,1), and gϵC2(Ω,S1)g_\epsilon\in C^2(\partial\Omega, \mathbb S^1). Motivated by the connection with the Landau-De Gennes model of nematic liquid crystals under weak anchoring conditions, we study the {asymptotic behavior} of uϵu_\epsilon as ϵ\epsilon goes to zero under the condition that the total modified Ginzburg-Landau energy {satisfies} Fϵ(uϵ,Ω)MlogϵF_\epsilon(u_\epsilon,\Omega)\le M|\log\epsilon| for some M>0M>0.

Keywords

Cite

@article{arxiv.1710.11437,
  title  = {Higher dimensional Ginzburg-Landau equations under weak anchoring boundary conditions},
  author = {Patricia Bauman and Daniel Phillips and Changyou Wang},
  journal= {arXiv preprint arXiv:1710.11437},
  year   = {2017}
}

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38 pages