Wednesday, March 20, 2013

1303.4519 (Laila Alabidi et al.)

Observable induced gravitational waves from an early matter phase    [PDF]

Laila Alabidi, Kazunori Kohri, Misao Sasaki, Yuuiti Sendouda
Assuming that inflation is succeeded by a phase of matter domination, which corresponds to a low temperature of reheating $T_r<10^9\rm{GeV}$, 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.
View original: http://arxiv.org/abs/1303.4519

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