Braneworld Gravity under gravitational Decoupling
نویسندگان
چکیده
منابع مشابه
Revamped Braneworld Gravity
Gravity in five-dimensional braneworld backgrounds often exhibits problematic features, including kinetic ghosts, strong coupling, and the vDVZ discontinuity. These problems are an obstacle to producing and analyzing braneworld models with interesting and potentially observable modifications of 4d gravity. We examine these problems in a general AdS5/AdS4 setup with two branes and localized curv...
متن کاملConstraining the braneworld with gravitational wave observations.
Some braneworld models may have observable consequences that, if detected, would validate a requisite element of string theory. In the infinite Randall-Sundrum model (RS2), the AdS radius of curvature, l, of the extra dimension supports a single bound state of the massless graviton on the brane, thereby reproducing Newtonian gravity in the weak-field limit. However, using the AdS/CFT correspond...
متن کاملGravitational Waves in a Codimension Two Braneworld
We consider the propagation of gravitational waves in six dimensions induced by sources living on 3-branes in the context of a recent exact solution [1]. The brane geometries are de Sitter and the bulk is a warped geometry supported by a positive cosmological constant as well as a 2-form flux. We show that at low energies ordinary gravity is reproduced, and explicitly compute the leading correc...
متن کاملGravitational baryogenesis in Gauss-Bonnet braneworld cosmology
The mechanism of gravitational baryogenesis, based on the CPT -violating gravitational interaction between the derivative of the Ricci scalar curvature and the baryon-number current, is investigated in the context of the Gauss-Bonnet braneworld cosmology. We study the constraints on the fundamental five-dimensional gravity scale, the effective scale of B-violation and the decoupling temperature...
متن کاملGravity beyond linear perturbation in braneworld
In the present paper, we briefly review recent studies of second order gravitational perturbations in braneworld models. After we mention the possibility of pathological behavior of gravity in higher order perturbations, second order perturbations are discussed in RandallSundrum braneworld models. Since mass spectrums of each braneworld model are different, we analyze them by different approach...
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: Fortschritte der Physik
سال: 2019
ISSN: 0015-8208,1521-3978
DOI: 10.1002/prop.201900077