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Vortex in the vacuumless sigma-cuscuton-like model | F. C. E. Lima
; C. A. S. Almeida
; | Date: |
4 Jan 2023 | Abstract: | Building a multi-field theory with canonical and non-canonical contributions,
one studies the vortex configurations of the O(3)-sigma model. We propose a
model constituted by an O(3)-sigma field, a cuscuton-like neutral scalar field,
and Maxwell’s field. We investigate BPS properties considering a vacuumless
theory using first-order formalism. Although the theory does not have a vacuum,
in each topological sector, there will be. Thus, in each topological sector,
the spontaneous symmetry breaking is preserved. Concurrently, a non-minimal
coupling between the sigma field and the Maxwell field is assumed. In this
scenario, interesting results arise, i. e., one notes that the vortices have an
internal structure and ring-like profile. Furthermore, one observes that the
ring-like vortex profiles that emerge are directly related to the contribution
of the cuscuton-like term. | Source: | arXiv, 2301.01397 | Services: | Forum | Review | PDF | Favorites |
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