F. C. E. Lima

collaborators

2 papers

hep-th2026

Topological and self-dual vortices in a double sigma model with Maxwell coupling

Francisco C. E. Lima, Fernando M. Belchior, Allan R. P. Moreira

In this work, we construct a double O(3)-sigma model minimally coupled to a Maxwell field in (2+1)-dimensional spacetime and investigate the existence of self-dual magnetic vortex…

gr-qc2026

Scalaron excitation by topological vortices in quadratic $f (R)$ gravity on a BTZ black hole background

C. A. S. Almeida, F. C. E. Lima

In three spacetime dimensions, pure Einstein gravity admits no local propagating degrees of freedom, yet nontrivial gravitational backgrounds such as the BTZ black hole provide a n…

Topological and self-dual vortices in a double sigma model with Maxwell coupling

Scalaron excitation by topological vortices in quadratic f(R) gravity on a BTZ black hole background

Scalaron excitation by topological vortices in quadratic $f (R)$ gravity on a BTZ black hole background