First-order framework for flat brane with auxiliary fields
arXiv:1407.1745 · doi:10.1103/PhysRevD.90.067702
Abstract
This work deals with braneworld models in the presence of auxiliary fields. We investigate the case where Einstein's equation is modified with the inclusion of extra, non-dynamical terms. We show that the model supports first-order differential equations that solve the equations of motion, but the standard braneworld scenario changes under the presence of the parameter that controls the non-dynamical or auxiliary fields that modifies Einstein's equation.
4 pages, 4 figures; new version: fig. 2 changed, text and references added; to appear in PRD
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