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The model of a domain wall ("thick" brane) in noncompact five-dimensional space-time is considered with geometries of $AdS_5$ type generated by self-interacting scalar matter. The scalar matter is composed of two fields with O(2) symmetric…

High Energy Physics - Theory · Physics 2015-06-11 Alexander A. Andrianov , Vladimir A. Andrianov , Oleg O. Novikov

We consider a six-dimensional braneworld model and we study the cosmological evolution of a (4+1) brane-universe. Introducing matter on the brane we show that the scale factor of the physical three-dimensional brane-universe is related to…

High Energy Physics - Theory · Physics 2009-11-11 Bertha Cuadros-Melgar , Eleftherios Papantonopoulos

By adopting the idea of Born-Infeld electromagnetism, the Born-Infeld determinantal gravity in Weitzenb\"ock spacetime provides a way to smooth the Big Bang singularity at the classical level. We consider a thick braneworld scenario in the…

High Energy Physics - Theory · Physics 2023-01-03 Ke Yang , Hao Yu , Yi Zhong

An alternative approach to introducing gravitational dynamics on a brane embedded in a higher dimensional spacetime is presented. The brane is treated as a boundary of a higher dimensional manifold in which the bulk action is described by a…

High Energy Physics - Theory · Physics 2007-05-23 D. L. Henty

Plane wave solutions of Schrodinger-like equations obtained from the metric perturbations in 5D braneworld scenarios can present resonant modes. The search for those structures is important because they can provide us massive modes with not…

High Energy Physics - Theory · Physics 2015-05-30 W. T. Cruz , A. R. Gomes , C. A. S. Almeida

In the context of braneworld scenarios, the real scalar field plays a crucial role by providing thickness for brane. In this work, we investigate a codimension-one thick brane within the framework of $f(R,Q,P)$ gravity, where $R$ represents…

General Relativity and Quantum Cosmology · Physics 2024-12-24 Fernando M. Belchior , Roberto V. Maluf , Albert Yu. Petrov , Paulo J. Porfírio

The evolution of the cosmological perturbations is studied in the context of the Randall-Sundrum brane world scenario, in which our universe is realized on a three-brane in the five dimensional Anti-de Sitter(AdS) spacetime. We develop a…

High Energy Physics - Theory · Physics 2009-10-31 Kazuya Koyama , Jiro Soda

This work investigates the cosmology of a thick brane within the context of $f(\mathbb{Q})$ gravity, an extension of symmetric teleparallelism. Using a five-dimensional Friedmann-Lema\^itre-Robertson-Walker metric, we solve the field…

General Relativity and Quantum Cosmology · Physics 2026-03-05 J. J. Ramos , J. E. G. Silva

We discuss theories in which the standard-model particles are localized on a brane embedded in space-time with large compact extra dimensions, whereas gravity propagates in the bulk. In addition to the ground state corresponding to a…

High Energy Physics - Theory · Physics 2010-11-19 G. Dvali , M. Shifman

We present the four-dimensional equations on a brane with a scalar field non-minimally coupled to the induced Ricci curvature, embedded in a five-dimensional bulk with a cosmological constant. This is a natural extension to a brane-world…

High Energy Physics - Theory · Physics 2009-11-10 Mariam Bouhmadi-Lopez , David Wands

It is known that the metric and Palatini formalisms of gravity theories have their own interesting features but also suffer from some different drawbacks. Recently, a novel gravity theory called hybrid metric-Palatini gravity was put…

General Relativity and Quantum Cosmology · Physics 2016-07-13 Qi-Ming Fu , Li Zhao , Yu-Xiao Liu

In this work we investigate the issue of gravity and fermion localization and resonances in $(4,1)$-branes constructed with one scalar field coupled with gravity in deformed models. Such models give solutions for the scalar field that is…

High Energy Physics - Theory · Physics 2009-12-22 W. T. Cruz , A. R. Gomes , C. A. S. Almeida

We analyze the background cosmology for an extension of the DGP gravity with Gauss-Bonnet term in the bulk and $f(R)$ gravity on the brane. We investigate implications of this setup on the late-time cosmic history. Within a dynamical system…

General Relativity and Quantum Cosmology · Physics 2014-01-15 Kourosh Nozari , Faeze Kiani , Narges Rashidi

We investigate braneworld models in the presence of the several scalar fields with generalized dynamics. A new mechanism to control the internal structure of brane in modified gravity is used to induce changes in the models in the presence…

High Energy Physics - Theory · Physics 2022-08-23 D. Bazeia , A. S. Lobão

We look at general braneworlds in six-dimensional Einstein-Gauss-Bonnet gravity. We find the general matching conditions for the Einstein-Gauss-Bonnet braneworld, which remarkably turn out to give precisely the four-dimensional Einstein…

High Energy Physics - Theory · Physics 2009-11-10 Paul Bostock , Ruth Gregory , Ignacio Navarro , Jose Santiago

We report the issues of localization of various bulk fields on a brane in a curved background from a local field-theoretic viewpoint where a special attention is paid to a warp geometry in a general space-time dimension. We point out that…

High Energy Physics - Theory · Physics 2007-05-23 Ichiro Oda

A five dimensional brane cosmology with non-minimally coupled scalar field to gravity has been considered in a Jordan-Brans-Dicke frame. We derive an effective four dimensional field equations on a 3+1 dimensional brane where the fifth…

General Relativity and Quantum Cosmology · Physics 2009-10-31 Luis E. Mendes , Anupam Mazumdar

The emphasis in the developmet of theories with more than three spatial dimensions has recently shifted towards ``brane world'' picture, which assumes that ordinary matter (with possible exceptions of gravitons and other, hypothetic,…

High Energy Physics - Phenomenology · Physics 2010-12-17 V. A. Rubakov

We investigate three-dimensional black hole solutions in the realm of pure and new massive gravity in 2+1 dimensions induced on a 2-brane embedded in a flat four-dimensional spacetime. There is no cosmological constant neither on the brane…

High Energy Physics - Theory · Physics 2011-10-26 D. Bazeia , F. A. Brito , F. G. Costa

Brane world gravity looks different for observers on positive and negative tension branes. First we consider the well-known RS1 model with two branes embedded into the AdS_5 space-time and recall the results on the relations between the…

High Energy Physics - Theory · Physics 2008-11-26 Edward E. Boos , Yuri S. Mikhailov , Mikhail N. Smolyakov , Igor P. Volobuev