Small and hollow magnetic monopoles

Abstract

We deal with the presence of magnetic monopoles in a non Abelian model that generalizes the standard 't~Hooft-Polyakov model in three spatial dimensions. We investigate the energy density of the static and spherically symmetric solutions to find first order differential equations that solve the equations of motion. The system is further studied and two distinct classes of solutions are obtained, one that can also be described by analytical solutions which is called small monopole, since it is significantly smaller than the standard 't~Hooft-Polyakov monopole. The other type of structure is the hollow monopole, since the energy density is endowed with a hole at its core. The hollow monopole can be smaller or larger than the standard monopole, depending on the value of the parameter that controls the magnetic permeability of the model.

arXiv comment7 pages, 8 figures

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• Shapes of magnetic monopoles in effective $SU(2)$ models
• A Generalised Self-Duality for the Yang-Mills-Higgs System
• Multimagnetic Monopoles
• All finite-mass Dirac monopoles
• Magnetic monopoles with an internal degree of freedom