On the scalar sector of the covariant graviton two-point function in de Sitter spacetime

Abstract

We examine the scalar sector of the covariant graviton two-point function in de Sitter spacetime. This sector consists of the pure-trace part and another part described by a scalar field. We show that it does not contribute to two-point functions of gauge-invariant quantities. We also demonstrate that the long-distance growth present in some gauges is absent in this sector for a wide range of gauge parameters.

15 pages, no figures, LaTeX, considerably shortened

References in corpus (3)

• Gravitational Waves in Open de Sitter Space
• Large-distance behaviour of the graviton two-point function in de Sitter spacetime
• Covariant two-point function for linear gravity in de Sitter space

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