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On the Physical Significance of Infra-red Corrections to Inflationary Observables
Inflationary observables, like the power spectrum, computed at one- and higher-order loop level seem to be plagued by large infra-red corrections. In this short note, we point out that these large infra-red corrections appear only in quantities which are not directly observable. This is in agreement...
| Autores principales: | , , , , |
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| Lenguaje: | eng |
| Publicado: |
2007
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1088/1475-7516/2008/01/015 http://cds.cern.ch/record/1071650 |
| Sumario: | Inflationary observables, like the power spectrum, computed at one- and higher-order loop level seem to be plagued by large infra-red corrections. In this short note, we point out that these large infra-red corrections appear only in quantities which are not directly observable. This is in agreement with general expectations concerning infra-red effects. |
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