Relativistic models for anisotropic compact stars: A review

J Kumar, P Bharti - New Astronomy Reviews, 2022 - Elsevier
Abstract The Einstein–Maxwell (or Einstein) system of field equations plays a substantial
role in the modeling of compact stars. Although due to its non-linearity getting an exact …

Mass dimension one fermions: Constructing darkness

DV Ahluwalia, JMH da Silva, CY Lee, YX Liu… - Physics Reports, 2022 - Elsevier
Let Θ be the Wigner time reversal operator for spin half and let ϕ be a Weyl spinor. Then, for
a left-transforming ϕ, the construct ζ λ Θ ϕ∗ yields a right-transforming spinor. If instead, ϕ is …

Thick brane in gravity

ARP Moreira, JEG Silva, FCE Lima, CAS Almeida - Physical Review D, 2021 - APS
In this paper we explore the five-dimensional f (T, B) teleparallel modified gravity with f 1 (T,
B)= T+ k 1 B n 1 and f 2 (T, B)= B+ k 2 T n 2 in the brane scenario. Asymptotically, the bulk …

Braneworlds in gravity

JEG Silva, RV Maluf, GJ Olmo, CAS Almeida - Physical Review D, 2022 - APS
We propose a braneworld scenario in a modified symmetric teleparallel gravitational theory,
where the dynamics for the gravitational field is encoded in the nonmetricity tensor rather …

First-order formalism for thick branes in gravity

ARP Moreira, FCE Lima, JEG Silva… - The European Physical …, 2021 - Springer
In this paper we study the thick brane scenario constructed in the recently proposed f (T, T)
theories of gravity, where T is called the torsion scalar and T is the trace of the energy …

[HTML][HTML] Evolution of scalar field resonances in a braneworld

Q Tan, YP Zhang, WD Guo, J Chen, CC Zhu… - The European Physical …, 2023 - Springer
In this work, we investigate the numerical evolution of massive Kaluza–Klein (KK) modes of
a scalar field in a thick brane. We derive the Klein–Gordon equation in five-dimensional …

Internal structure of cuscuton Bloch brane

D Bazeia, DA Ferreira, MA Marques - The European Physical Journal C, 2021 - Springer
This work deals with thick branes in bulk with a single extra dimension modeled by a two-
field configuration. We first consider the inclusion of the cuscuton to also control the …

Localization of scalar field on the brane-world by coupling with gravity

H Guo, YT Lu, CL Wang, Y Sun - Journal of High Energy Physics, 2024 - Springer
A bstract In this paper, we consider a coupling mechanism between the kinetic term and the
gravity, in which a coupling function F (R) is introduced into the kinetic term of the five …

[HTML][HTML] Gravitational resonances on f (T)-branes

Q Tan, WD Guo, YP Zhang, YX Liu - The European Physical Journal C, 2021 - Springer
In this work, we investigate the gravitational resonances in various f (T)-brane models with
the warp factor\(\text {e}^{A (y)}=\tanh\big (k (y+ b)\big)-\tanh\big (k (yb)\big)\), where f (T) is …

Characteristic modes of a thick brane: Resonances and quasinormal modes

Q Tan, WD Guo, YP Zhang, YX Liu - Physical Review D, 2024 - APS
In this work, we investigate the gravitational quasinormal modes (QNMs) and the
gravitational resonances of a thick brane model. We use the asymptotic iteration and …