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相关论文: Most likely configurations for fermion localizatio…

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In this research, we delve into the localization patterns of fermionic fields within a braneworld setting, employing a modified gravity model denoted as $f(Q)$. Our investigation revolves around two specific models, $f_1(Q)=Q+kQ^n$ and…

广义相对论与量子宇宙学 · 物理学 2024-01-05 A. R. P. Moreira , Shi-Hai Dong

We investigate the fermion localization in extra-dimensional $f(Q,\mathcal{T})$ gravity with cuscuton dynamics. This modified gravity theory is based on the nonmetricity scalar $Q$ and on the trace of the energy-momentum tensor…

广义相对论与量子宇宙学 · 物理学 2025-03-18 Allan R. P. Moreira , Shi-Hai Dong , Emmanuel N. Saridakis

Localization of fermions is studied in different gravitational domain wall models. These are generalizations of the brane-world models considered by Randall and Sundrum, but which also allow gravitational localization. Therefore, they might…

高能物理 - 理论 · 物理学 2014-05-28 Oscar Castillo-Felisola , Ivan Schmidt

This work deal with braneworld scenarios with generalized gravity. We investigate models where the potential of the scalar field is polynomial or nonpolynomial. We obtain exact and approximated solutions for the scalar field, warp factor…

高能物理 - 理论 · 物理学 2014-01-27 D. Bazeia , A. S. Lobao , R. Menezes , A. Yu. Petrov , A. J. da Silva

We construct brane solutions in six dimensional Einstein-Skyrme systems. A class of baby skyrmion solutions realize warped compactification of the extra dimensions and gravity localization on the brane for negative bulk cosmological…

高能物理 - 理论 · 物理学 2008-07-28 Yuta Kodama , Kento Kokubu , Nobuyuki Sawado

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 than in the curvature. Assuming a single real scalar…

广义相对论与量子宇宙学 · 物理学 2022-08-31 J. E. G. Silva , R. V. Maluf , Gonzalo J. Olmo , C. A. S. Almeida

We consider the effects of spacetime curvature and brane thickness on the localization of gauge fields on a brane via kinetic terms induced by localized fermions. We find that in a warped geometry with and infinitely thin brane, both the…

高能物理 - 理论 · 物理学 2010-04-21 Rommel Guerrero , Alejandra Melfo , Nelson Pantoja , R. Omar Rodriguez

We investigate the localization of fermionic fields in a five-dimensional braneworld scenario within the framework of modified teleparallel gravity described by a general $f(T,T_G)$ function. Considering a non-minimal coupling between a…

高能物理 - 理论 · 物理学 2026-05-22 Allan R. P. Moreira , Fernando M. Belchior , Guo-Hua Sun , Shi-Hai Dong

In this letter we consider a specific model of braneworld with nonstandard dynamics diffused in the literature, specifically we focus our attention on the matter energy density, the energy of system, the Ricci scalar and the thin brane…

高能物理 - 理论 · 物理学 2015-02-24 Luis B. Castro , Luis E. Arroyo Meza

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…

高能物理 - 理论 · 物理学 2009-12-22 W. T. Cruz , A. R. Gomes , C. A. S. Almeida

A generalized two-brane Randall-Sundrum warped braneworld model admits of solutions of the warp factor for both positive or negative cosmological constant on the visible 3-brane which can resolve the naturalness problem in connection with…

高能物理 - 理论 · 物理学 2010-05-12 Ratna Koley , Joydip Mitra , Soumitra SenGupta

We investigate thick-brane configurations in five-dimensional $f(T,T_G)$ modified teleparallel gravity. In five dimensions, the torsional Gauss-Bonnet invariant $T_G$ contributes dynamically, leading to genuinely new effects even at linear…

高能物理 - 理论 · 物理学 2026-05-20 A. R. P. Moreira , F. M. Belchior , Shi-Hai Dong , E. N. Saridakis

The viability of achieving gravitational consistent braneworld models in the framework of a f(R) theory of gravity is investigated. After a careful generalization of the usual junction conditions encompassing the embedding of the 3-brane…

广义相对论与量子宇宙学 · 物理学 2014-10-21 T. R. P. Carames , M. E. X. Guimaraes , J. M. Hoff da Silva

We investigate the dynamics of fermion localization within the framework of $f(T, B)$ gravity featuring non-minimal couplings. Starting from the Dirac action for a spin-$1/2$ fermion in a five-dimensional spacetime governed by torsional…

广义相对论与量子宇宙学 · 物理学 2025-03-18 Allan R. P. Moreira , Shi-Hai Dong , Emmanuel N. Saridakis

This work deals with gravity localization on codimension-1 brane worlds engendered by compacton-like kinks, the so-called hybrid branes. In such scenarios, the thin brane behaviour is manifested when the extra dimension is outside the…

高能物理 - 理论 · 物理学 2016-02-03 D. F. S. Veras , W. T. Cruz , R. V. Maluf , C. A. S. Almeida

In this work we investigate the issue of fermion localization and resonances in $(4,1)$-deformed branes constructed with one scalar field coupled with gravity. Such models provide us branes with internal structures that turns the…

高能物理 - 理论 · 物理学 2015-05-30 W. T. Cruz , A. R. Gomes , C. A. S. Almeida

Braneworld scenarios consider our observable universe as a brane embedded in a 5D space, named bulk. In this work, I derive the field equations of a braneworld model in a generalized theory of gravitation, namely $f(R,T)$ gravity, with $R$…

广义相对论与量子宇宙学 · 物理学 2016-02-17 P. H. R. S. Moraes , R. A. C. Correa

In this work we study two types of five-dimensional braneworld models given by sine-Gordon potentials. In both scenarios, the thick brane is generated by a real scalar field coupled to gravity. We focus our investigation on the localization…

高能物理 - 理论 · 物理学 2015-11-26 W. T. Cruz , R. V. Maluf , L. J. S. Sousa , C. A. S. Almeida

In this paper a model in a space-time with compact extra dimension is presented, describing five-dimensional fermion fields interacting with an electromagnetic field localized on a brane. This model can be considered as a toy model for…

高能物理 - 理论 · 物理学 2013-05-29 Mikhail N. Smolyakov

Recent theoretical developments have generated a strong interest in the ``brane-world'' picture, which assumes that ordinary matter is trapped in a three-dimensional submanifold, usually called brane, embedded in a higher dimensional space.…

广义相对论与量子宇宙学 · 物理学 2007-05-23 David Langlois
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