Speaker
Adrià Delhom I Latorre
(University of Valencia)
Description
In this talk we will explicitly show how ghost degrees of freedom arise in a sub-class of metric-affine theories unless projective symmetry is enforced. Then, we will generalise the techniques employed in that particular case to argue why ghosts will arise in generic metric-affine theories of gravity around arbitrary backgrounds. We will also discuss some results on possible ways to avoid them.
Primary authors
Adrià Delhom I Latorre
(University of Valencia)
Dr
Jose Beltrán Jiménez
(Universidad de Salamanca)
