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

Authors
Higuchi, A Kouris, SS
Citation
A. Higuchi et Ss. Kouris, On the scalar sector of the covariant graviton two-point function in de Sitter spacetime, CLASS QUANT, 18(15), 2001, pp. 2933-2944
Citations number
21
Categorie Soggetti
Physics
Journal title
CLASSICAL AND QUANTUM GRAVITY
ISSN journal
02649381 → ACNP
Volume
18
Issue
15
Year of publication
2001
Pages
2933 - 2944
Database
ISI
SICI code
0264-9381(20010807)18:15<2933:OTSSOT>2.0.ZU;2-R
Abstract
We examine the scalar sector of the covariant graviton two-point function i n de Sitter spacetime. This sector consists of the pure-trace part and anot her part described by a scalar field. We show that it does not contribute t o two-point functions of gauge-invariant quantities. We also demonstrate th at the long-distance growth present in some gauges is absent in this sector for a wide range of gauge parameters.