String-like brane splitting in the context of $$f(T,\mathcal {B})$$ gravity

Moreira, A. R. P.; Almeida, C. A. S.

doi:10.1007/s10714-023-03136-1

Cited by 1 publication

(1 citation statement)

References 65 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is also noteworthy that the scenario of thick branes represents an active area of research, in which numerous brane characteristics have been investigated [31][32][33][34][35][36]. Thus, the study of thick brane models has an intrinsic value, and it is interesting to put experimental constraints on these models.…”

Section: Introductionmentioning

confidence: 99%

Constraints on extra dimensions theories from gravitational quantum barrier experiments

Rocha,

Dahia

2024

Class. Quantum Grav.

View full text Add to dashboard Cite

We discuss the quantum-bouncer experiment involving ultracold neutrons in a braneworld scenario. Extra-dimensional theories typically predict the strengthening of gravitational interactions over short distances. In this paper, we specifically study the anomalous gravitational interaction between the bouncing neutron and the reflecting mirror, resulting from hidden dimensions, and investigate the effects of this new interaction on the outcome of the quantum-bouncer experiment in the context of a thick brane model. This analysis allows us to identify which physical quantity of the extra-dimensional theory this neutron experiment is capable of constraining. Based on the experimental data, we found a new and independent empirical bound on the free parameters of the model: the higher-dimensional gravitational constant and a parameter related to a transverse width of the confined matter inside the thickbrane. This new bound is valid in scenarios with an arbitrary number of extra dimensions greater than two. In this manner, by considering the thickness of the brane, we have been able to extend previous studies on this topic, which were limited to models with few codimensions, due to non-computability problems of power-law corrections of the gravitational potential.

show abstract