Journal
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Volume -, Issue 5, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1475-7516/2013/05/033
Keywords
gravitational waves / theory; primordial black holes; inflation; gravitational waves / experiments
Funding
- JSPS [21244033]
- MEXT [24111701]
- [24103006]
- [21111006]
- [22244030]
- [23540327]
- Grants-in-Aid for Scientific Research [24111701, 21111006, 21244033, 22244030, 23540327] Funding Source: KAKEN
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Assuming that inflation is succeeded by a phase of matter domination, which corresponds to a low temperature of reheating T-r < 10(9) GeV, we evaluate the spectra of gravitational waves induced in the post-inflationary universe. We work with models of hilltop-inflation with an enhanced primordial scalar spectrum on small scales, which can potentially lead to the formation of primordial black holes. We find that a lower reheat temperature leads to the production of gravitational waves with energy densities within the ranges of both space and earth based gravitational wave detectors.
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