Riemannian approach and cosmological singularity
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...
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Autores principales: | Calzetta, E., Castagnino, M. |
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Formato: | JOUR |
Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_05562821_v29_n8_p1609_Calzetta |
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