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Squeezed thermal vacuum and the maximum scale for inflation
We consider the stimulated emission of gravitons from an initial state of thermal equilibrium, under the action of the cosmic gravitational background field. We find that the low-energy graviton spectrum is enhanced if compared with spontaneous creation from the vacuum; as a consequence, the scale o...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
1993
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevD.48.R439 http://cds.cern.ch/record/250257 |