7 papers
Quasinormal frequencies for a black hole in a bumblebee gravity
R. Oliveira, D. M. Dantas, C. A. S. Almeida
After recent observational events like the LIGO-Virgo detections of gravitational waves and the shadow image of M87* supermassive black hole by Event Horizon Telescope (EHT), the t…
New class of solutions of a generalized -sigma Chern-Simons model
F. C. E. Lima, D. M. Dantas, C. A. S. Almeida
In this work, we investigated the existence of compacton-like configuration in the O(3)-sigma model. We consider a minimally coupled O(3)-sigma model with a gauge field governed by…
The Casimir effect for the scalar and Elko fields in a Lifshitz-like field theory
R. V. Maluf, D. M. Dantas, C. A. S. Almeida
In this work, we obtain the Casimir energy for the real scalar field and the Elko neutral spinor field in a field theory at a Lifshitz fixed point (LP). We analyze the massless and…
Quasi-normal modes of bumblebee wormhole
R. Oliveira, D. M. Dantas, Victor Santos +1
In this work, we calculate the quasi-normal frequencies from a bumblebee traversable wormhole. The bumblebee wormhole model is based on the bumblebee gravity, which exhibits a spon…
Configurational entropy and Newton's Law in double sine-Gordon braneworlds
W. T. Cruz, D. M. Dantas, R. V. Maluf +1
In this work, we evaluate the Shannon-like entropic measure of spatially-localized functions for a five-dimensional braneworld generated by a double sine-Gordon (DSG) potential. Th…
Corrections to Newton's law of gravitation - application to hybrid Bloch brane
C A S Almeida, D F S Veras, D M Dantas
We present in this work, the calculations of corrections in the Newton's law of gravitation due to Kaluza-Klein gravitons in five-dimensional warped thick braneworld scenarios. We…