2014/06/03 by Nikos Platis, Ioannis Antoniou, Leandros Perivolaropoulos
Physics and Astronomy · #Advanced Differential Geometry Research #Algorithm #Black Holes and Theoretical Physics #Computer science #Cosmology and Gravitation Theories #astro-ph.CO #hep-th
paper · pdf · doi:10.1103/physrevd.89.123510
13 pages, 15 figures. Accepted in Phys. Rev. D (to appear). arXiv admin note: text overlap with arXiv:hep-ph/9904229 by other authors
arxiv created 2014/06/03 · openalex publication_date 2014/06/16 · arxiv updated 2015/06/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We consider Lagrangians in 3+1 dimensions admitting topological defects where there is an additional coupling between the defect scalar field \mathrm\ensuremathΦ and the gauge field kinetic term (e.g. B(|\mathrm\ensuremathΦ|2)F_\ensuremathμ\ensuremathνF^\ensuremathμ\ensuremathν). Such a dilatonic coupling in the context of a static defect induces a spatially dependent effective gauge charge and effective mass for the scalar field, which leads to modified properties of the defect core. In particular, the scale of the core gets modified while the stability properties of the corresponding embedded defects are also affected. These modifications are illustrated for gauged (Nielsen-Olesen) vortices and for gauged ('t Hooft--Polyakov) monopoles. The corresponding dilatonic global defects are also studied in the presence of an external gauge field.