Large-distance behaviour of the graviton two-point function in de Sitter spacetime

Atsushi Higuchi, Spyros S Kouris
2000 Classical and quantum gravity  
It is known that the graviton two-point function for the de Sitter invariant "Euclidean" vacuum in a physical gauge grows logarithmically with distance in spatially-flat de Sitter spacetime. We show that this logarithmic behaviour is a gauge artifact by explicitly demonstrating that the same behaviour can be reproduced by a pure-gauge two-point function.
doi:10.1088/0264-9381/17/15/316 fatcat:z55kiyorebhorbspqm3l4dsvh4