Abstract Braneworld models with induced gravity exhibit phantom-like behavior of the effective equation state dark energy. They can, therefore, naturally accommodate higher values H 0 , preferred by recent local measurements while satisfying cosmic microwave background constraints. We test evolution in such phantom braneworld scenarios current observational data sets. find that prefers a value ...

It is technically difficult (if not impossible) to write down and solve self-consistently the semiclassical Einstein equations in the case of evaporating black holes. These difficulties can in principle be overcome in an apparently very different context, the Randall-Sundrum braneworld models in Anti-de Sitter space. Use of Maldacena’s AdS/CFT correspondence led us to formulate a holographic co...

In the Randall-Sundrum scenario we analyze the dynamics of an AdS5 braneworld when conformal matter fields propagate in 5-dimensions. We show that conformal fields of weight −4 are associated with stable geometries which describe the dynamics of inhomogeneous dust, generalized dark radiation and homogeneous polytropic dark energy on a spherically symmetric 3-brane embedded in the compact AdS5 o...

We give a full nonlinear numerical treatment of time-dependent 5d braneworld geometry, which is determined self-consistently by potentials for the scalar field in the bulk and at two orbifold branes, supplemented by boundary conditions at the branes. We describe the BraneCode r ©, an algorithm which we designed to solve the dynamical equations numerically. We applied the BraneCode to braneworld...

Braneworld cosmology supported by a bulk scalar field with an exponential potential is developed. A general class of separable backgrounds for both single and two–brane systems is derived, where the bulk metric components are given by products of world-volume and bulk coordinates and the world– volumes represent any anisotropic and inhomogeneous solution to an effective four–dimensional Brans–D...

1550-7998=20 Braneworld cosmology supported by a bulk scalar field with an exponential potential is developed. A general class of separable backgrounds for both single and two-brane systems is derived, where the bulk metric components are given by products of world volume and bulk coordinates and the world-volumes represent any anisotropic and inhomogeneous solution to an effective four-dimensi...

Braneworld models with induced gravity have the potential to replace dark energy as the explanation for the current accelerating expansion of the Universe. The original model of Dvali, Gabadadze and Porrati (DGP) demonstrated the existence of a “self–accelerating” branch of background solutions, but suffered from the presence of ghosts. We present a new large class of braneworld models which ge...