北京雁栖湖应用数学研究院

拉尔斯•安德森 , 赵博文

阿米尔马苏德·吉维奇

2024年09月30日 15:30 至 17:00

A3-2-301

Zoom 559 700 6085 (BIMSA)

In this talk, I will present my PhD thesis about the approximation of the Abelian Yang-Mills-Higgs equation by wave maps. These equations describe the interaction of the Higgs field and the electromagnetic field. They have $U(1)$ gauge symmetries and are hyperbolic. At the critical coupling, the finite energy and static solutions in dimension $2$ have been classified by Jaffe and Taubes in 1980, the so called (anti)-vortex configurations and they form a moduli space which is a smooth Riemannian manifold. In this talk I will explain that one can find adiabatic solutions in dimension $(3+1)$ whose dynamics are approximated by wave maps to the moduli space, a generalization of the geodesic approximation in dimension $(2+1)$ which has been proved by Stuart in 1994. We use the gluing method to construct solutions and take advantage of the so called Higgs mechanism, the existence of a spectral gap for the linearization of the equations, under specific gauge conditions. This is a joint work with Robert Jerrard.