The covariant graviton propagator in de Sitter spacetime

Authors
Higuchi, A Kouris, SS
Citation
A. Higuchi et Ss. Kouris, The covariant graviton propagator in de Sitter spacetime, CLASS QUANT, 18(20), 2001, pp. 4317-4327
Citations number
21
Categorie Soggetti
Physics
Journal title
CLASSICAL AND QUANTUM GRAVITY
ISSN journal
02649381 → ACNP
Volume
18
Issue
20
Year of publication
2001
Pages
4317 - 4327
Database
ISI
SICI code
0264-9381(20011021)18:20<4317:TCGPID>2.0.ZU;2-I
Abstract
We consider the covariant graviton propagator in de Sitter spacetime in a g auge with two parameters, alpha and beta, in the Euclidean approach. We giv e an explicit form of the propagator with a particular choice of beta but w ith an arbitrary value of alpha. We confirm that two-point functions of loc al gauge-invariant quantities do not increase as the separation of the two points becomes large.