Covariant two-point function for linear gravity in de Sitter space

  • Mohammad Vahid TAKOOK
  • Published 2008


The Wightman two-point function for the gravitational field in the linear approximation (the rank-2 “massless” tensor field) on de Sitter space has a pathological behaviour for large separated points (infrared divergence). This behaviour can be eliminated in the two-point function for the traceless part of this field if one chooses the Gupta-Bleuler vacuum… (More)


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