Primordial fluctuations from nonlinear couplings
We study the spectrum of primordial fluctuations in theories where the inflaton field is nonlinearly coupled to massless fields and/or to itself. Conformally invariant theories generically predict a scale-invariant spectrum. Scales entering the theory through infrared divergences cause logarithmic c...
Guardado en:
| Publicado: |
1997
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v55_n4_p1812_Calzetta http://hdl.handle.net/20.500.12110/paper_15507998_v55_n4_p1812_Calzetta |
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