145 citations · 153 across the 5 of their papers we have counts for
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astro-ph2005
The bound on the primordial tensor perturbation
David H. Lyth
I recall the well-known sufficient conditions for the bound on the spectrum of the primordial tensor perturbation. Two recent papers claim a violation of this bound, withou…
astro-ph2005★ 145 cited
Non-gaussianity from the second-order cosmological perturbation
David H. Lyth, Yeinzon Rodriguez
Several conserved and/or gauge invariant quantities described as the second-order curvature perturbation have been given in the literature. We revisit various scenarios for the gen…