English

Entire solutions to 4-dimensional Ginzburg-Landau equations and codimension 2 minimal submanifolds

Analysis of PDEs 2023-07-28 v3

Abstract

We consider the magnetic Ginzburg-Landau equations in R4\mathbb{R}^4 {ε2(iA)2u=12(1u2)u,ε2ddA=(iA)u,iu \begin{cases} -\varepsilon^2(\nabla-iA)^2u = \frac{1}{2}(1-|u|^{2})u,\\ \varepsilon^2 d^*dA = \langle(\nabla-iA)u,iu\rangle \end{cases} formally corresponding to the Euler-Lagrange equations for the energy functional E(u,A)=12R4(iA)u2+ε2dA2+14ε2(1u2)2. E(u,A)=\frac{1}{2}\int_{\mathbb{R}^4}|(\nabla-iA)u|^{2}+\varepsilon^2|dA|^{2}+\frac{1}{4\varepsilon^2}(1-|u|^{2})^{2}. Here u:R4Cu:\mathbb{R}^4\to \mathbb{C}, A:R4R4A: \mathbb{R}^4\to\mathbb{R}^4 and dd denotes the exterior derivative acting on the one-form dual to AA. Given a 2-dimensional minimal surface MM in R3\mathbb{R}^3 with finite total curvature and non-degenerate, we construct a solution (uε,Aε)(u_\varepsilon,A_\varepsilon) which has a zero set consisting of a smooth 2-dimensional surface close to M×{0}R4M\times \{0\}\subset \mathbb{R}^4. Away from the latter surface we have uε1|u_\varepsilon| \to 1 and uε(x)zz,Aε(x)1z2(z2ν(y)+z1e4),x=y+z1ν(y)+z2e4 u_\varepsilon(x)\, \to\, \frac {z}{|z|},\quad A_\varepsilon(x)\, \to\, \frac 1{|z|^2} ( -z_2 \nu(y) + z_1 {\textbf{e}}_4), \quad x = y + z_1 \nu(y) + z_2 {\textbf{e}}_4 for all sufficiently small z0z\ne 0. Here yMy\in M and ν(y)\nu(y) is a unit normal vector field to MM in R3\mathbb{R}^3.

Keywords

Cite

@article{arxiv.2205.15099,
  title  = {Entire solutions to 4-dimensional Ginzburg-Landau equations and codimension 2 minimal submanifolds},
  author = {Marco Badran and Manuel del Pino},
  journal= {arXiv preprint arXiv:2205.15099},
  year   = {2023}
}