Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Dantas, D M"'
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 theoretical study of black holes was significantly improved. Quantities
Externí odkaz:
http://arxiv.org/abs/2105.07956
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 a generalized Chern-Simons term. Contrary to that established in the
Externí odkaz:
http://arxiv.org/abs/1909.02170
Publikováno v:
Eur. Phys. J. C 80, 442 (2020)
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 the massive case for both fields using dimensional regularization. We
Externí odkaz:
http://arxiv.org/abs/1905.04824
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 spontaneous Lorentz symmetry breaking. Supporting by the Lorentz violation
Externí odkaz:
http://arxiv.org/abs/1812.01798
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. The differential configurational entropy (DCE) has been shown in several
Externí odkaz:
http://arxiv.org/abs/1810.03991
Publikováno v:
IOP Conf. Series: Journal of Physics: Conf. Series 965 (2018) 012002
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 consider here a recently proposed model, namely, the hybrid Bloch bran
Externí odkaz:
http://arxiv.org/abs/1802.06808
The t'Hooft-Polyakov monopole mass can be substantially altered, in the thick GS and HC brane-world setup, and can be employed to constrain the brane thickness limit. In this work, we comprise a brief review regarding gauge fields localization in the
Externí odkaz:
http://arxiv.org/abs/1802.05638
The so-called configurational entropy (CE) framework has proved to be an efficient instrument to study nonlinear scalar field models featuring solutions with spatially-localized energy, since its proposal by Gleiser and Stamapoulos. Therefore, in thi
Externí odkaz:
http://arxiv.org/abs/1702.04042
In this work, we derive an expression for the correction in the Newton's law of gravitation due to the gravitational Kaluza-Klein states in a general thick string-like braneworld scenario in six dimensions. In order to analyze corrections to Newton's
Externí odkaz:
http://arxiv.org/abs/1610.08124
Publikováno v:
Ann. Phys. 2017 (2017) 1700188
This letter aims to analyse the so-called configurational entropy in the Weyl pure geometrical thick brane model. The Weyl structure plays a prominent role in the thickness of this model. We find a set of parameters associated to the brane width wher
Externí odkaz:
http://arxiv.org/abs/1607.01710