[hep-th] seminar

[Branislav Cvetkovic]

Postovane kolege,

u petak 10. februara na Institutu za fiziku u 11h
Rodrigo Olea sa Univerziteta Andreas Beljo iz Santjaga
odrzace seminar pod naslovom "From Conformal to Einstein Gravity". 
Apstrakt vam prosledjujem u nastavku.

                                       Pozdrav Branislav

Abstract

We provide a simple derivation of the equivalence between Einstein and 
Conformal Gravity (CG) with Neumann boundary conditions given by 
Maldacena. As Einstein spacetimes are Bach flat, a generic solution to 
CG would contain both Einstein and non-Einstein part. Using this 
decomposition  of the spacetime curvature in the Weyl tensors, makes 
manifest the equivalence between the two theories, both at the level of 
action anv variation of it.  As a consequence, we show that the on-shell 
action for Critical Gravity in four dimensions is given uniquely in 
terms of the Bach tensor. The formulation presented here is expected to 
provide a shortcut in the computation of holographic correlation 
functions in Critical Gravity.

-- 
Institute of Physics Belgrade
Pregrevica 118, 11080 Belgrade, Serbia
http://www.ipb.ac.rs/