The covariant graviton propagator in de Sitter spacetime
A Higuchi, SS Kouris - Classical and Quantum Gravity, 2001 - iopscience.iop.org
A Higuchi, SS Kouris
Classical and Quantum Gravity, 2001•iopscience.iop.orgWe consider the covariant graviton propagator in de Sitter spacetime in a gauge with two
parameters, α and β, in the Euclidean approach. We give an explicit form of the propagator
with a particular choice of β but with an arbitrary value of α. We confirm that two-point
functions of local gauge-invariant quantities do not increase as the separation of the two
points becomes large.
parameters, α and β, in the Euclidean approach. We give an explicit form of the propagator
with a particular choice of β but with an arbitrary value of α. We confirm that two-point
functions of local gauge-invariant quantities do not increase as the separation of the two
points becomes large.
Abstract
We consider the covariant graviton propagator in de Sitter spacetime in a gauge with two parameters, α and β, in the Euclidean approach. We give an explicit form of the propagator with a particular choice of β but with an arbitrary value of α. We confirm that two-point functions of local gauge-invariant quantities do not increase as the separation of the two points becomes large.
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