Monopoles, Dyons and Theta Term in Dirac-Born-Infeld Theory

Abstract

We present dyon solutions to an SU(2) Dirac-Born-Infeld (DBI) gauge theory coupled to a Higgs triplet. We consider different non-Abelian extensions of the DBI action and study the resulting solutions numerically, comparing them with the standard Julia-Zee dyons. We discuss the existence of a critical value of $\beta$, the Born-Infeld absolute field parameter, below which the solution ceases to exist. We also analyse the effect of modifying the DBI action so as to include the analogous of the $\theta$ term, showing that Witten formula for the dyon charge also holds in DBI theories.

15 pages, 3 figures

References in corpus (2)

• Bogomol'nyi Equations for Vortices in Born-Infeld-Higgs Systems
• Gravitating monopoles and black holes in Einstein-Born-Infeld-Higgs model

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