Riemannian approach and cosmological singularity

Details Riemannian approach and cosmological singularity Riemannian approach and cosmological singularity

Apr 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984phrvd..29.1609c&link_type=abstract

Physical Review D (Particles and Fields), Volume 29, Issue 8, 15 April 1984, pp.1609-1617

Mathematics

Logic

4

Scientific paper

We study the definition of the Feynman propagator for a free conformally coupled scalar field on a Robertson-Walker background, as the continuation to physical space of the single propagator of a Riemannian manifold. If the space-time has a cosmological singularity, a boundary condition is proposed that leads to the definition of particle modes at the singularity.

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