Thick brane in Rastall gravity
نویسندگان
چکیده
A bstract In this work, thick branes in Rastall gravity are investigated. Three types of maximally symmetric brane models constructed and the linear tensor perturbation is analyzed. flat model, modes either unstable or nonlocalizable for a nonvanishing parameter. de Sitter only ground state mode localized. anti-de number bound states infinity. For both models, condition stability parameter obtained. The scalar perturbations also considered three models.
منابع مشابه
Instability of thick brane worlds
We examined 5d thick brane worlds constructed by a real scalar field. The solutions are obtained in terms of a simple form of smooth warp factor. For the case of dS brane, we found a disease of the solutions. For example, it is impossible to construct thick-brane worlds with our simple smoothing. This result is independent of supersymmetry or other symmetries. [email protected] yahiro@s...
متن کاملLinearized Gravity in Brane Backgrounds
Abstract A treatment of linearized gravity is given in the Randall-Sundrum background. The graviton propagator is found in terms of the scalar propagator, for which an explicit integral expression is provided. This reduces to the four-dimensional propagator at long distances along the brane, and provides estimates of subleading corrections. Asymptotics of the propagator off the brane yields exp...
متن کاملThick de Sitter Brane Worlds, Dynamic Black Holes and Localization of Gravity
The embedding of a thick de Sitter 3-brane into a five-dimensional bulk spacetime is considered, by assuming that in the bulk a scalar field with potential that is a power of cosine of the scalar field, is present. A class of analytical solutions has been found in a closed form, which can represent a thick de Sitter 3-brane interpolating two dynamical black holes with R × S4 topology. The gravi...
متن کاملBrane World in Generalized Gravity
We consider Randall-Sundrum(RS) model in generalized gravities and see that the localization of gravity happens in generic situations though its effectiveness depends on the details of the configuration. It is shown that RS picture is robust against quantum gravity corrections (φR) as long as the correction is reasonably small. We extend our consideration to the model of scalar(dilaton) coupled...
متن کاملBrane-world Quantum Gravity
The Arnowitt-Deser-Misner canonical formulation of general relativity is extended to the covariant brane-world theory in arbitrary dimensions. The exclusive probing of the extra dimensions makes a substantial difference, allowing for the construction of a non-constrained canonical theory. The quantum states of the brane-world geometry are defined by the Tomonaga-Schwinger equation, whose integr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2022
ISSN: ['1127-2236', '1126-6708', '1029-8479']
DOI: https://doi.org/10.1007/jhep09(2022)128