We construct conserved currents, divergences of antisymmetric tensor densities (superpotentials) in D-dimensional gravity on arbitrary curved backgrounds using proven methods. These superpotentials have two remarkable properties: they depend in an essential way on second derivatives in the Lagrangian and are independent on divergences added to it. The conserved currents are thus particulary wel...

The d-dimensional string generated gravity models lead to Einstein-Maxwell equations with quadratic order correction term called the Gauss-Bonnet term. We calculate the quasinormal modes for the d-dimensional charged black hole in the framework of this model. The quasinormal spectrum essentially depends upon the Gauss-Bonnet coupling parameter α which is related to the string scale, and is tota...

We present a linear treatment of the Einstein-Gauss-Bonnet gravity on a singular co-dimension one brane embedded in (d+1) dimensional anti-de Sitter spacetimes. We show that the four-dimensional propagator at long distances along the brane gives the zero-energy solution, which corresponds to a localized massless graviton with correct momentum and tensor structures. Email: [email protected]...

We establish the physical process version of the first law by studying small perturbations of a stationary black hole with a regular bifurcation surface in Einstein-Gauss-Bonnet gravity. Our result shows that when the stationary black hole is perturbed by a matter stress energy tensor and finally settles down to a new stationary state, the Wald entropy increases as long as the matter satisfies ...

We construct a holographic dark energy model with a non-minimally coupled scalar field on the brane where Gauss-Bonnet and Induced Gravity effects are taken into account. This model provides a wide parameter space with several interesting cosmological implications. Especially, the equation of state parameter of the model crosses the phantom divide line and it is possible to realize bouncing sol...