Thick brane models in generalized theories of gravity

Abstract

This work deals with thick braneworld models, in an environment where the Ricci scalar is changed to accommodate the addition of two extra terms, one depending on the Ricci scalar itself, and the other, which takes into account the trace of the energy-momentum tensor of the scalar field that sources the braneworld scenario. We suppose that the scalar field engenders standard kinematics, and we show explicitly that the gravity sector of this new braneworld scenario is linearly stable. We illustrate the general results investigating two distinct models, focusing on how the brane profile is changed in the modified theories.

8 pages, 8 figures. To appear in PLB

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Cited by in corpus (9)

• Kinklike structures in models of the Dirac-Born-Infeld type
• Impact of compactlike and asymmetric configurations of thick branes on the scalar-tensor representation of $f\left(R,T\right)$ gravity
• Models of modified $F(R,T)$ and cuscuton braneworld
• Multi-kink braneworld configurations in the scalar-tensor representation of $f(R,T)$ gravity
• Generalized Jackiw-Teitelboim gravity in presence of Bloch brane-like models
• Novel modified gravity braneworld configurations with a Lagrange multiplier
• Thick brane models in generalized mimetic gravity
• Kinklike structures in an arcsin real scalar dynamics
• Cuscuta-Galileon Braneworlds