TL;DR
This paper explores a model with two scalar fields coupled to gravity in a warped five-dimensional spacetime, demonstrating how their interaction creates a thick brane with internal structure that localizes energy density.
Contribution
It introduces a new mechanism where scalar field interactions in warped spacetime produce thick branes with internal structure, advancing brane-world models.
Findings
Thick branes with internal structure are generated by scalar field interactions.
Energy density localizes inside the brane in a specific manner.
Scalar field parameters control the brane's internal features.
Abstract
We investigate a system described by two real scalar fields coupled with gravity in (4, 1) dimensions in warped spacetime involving one extra dimension. The results show that the parameter which controls the way the two scalar fields interact induces the appearence of thick brane which engenders internal structure, driving the energy density to localize inside the brane in a very specific way.
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