68 citations · 82 across the 2 of their papers we have counts for
2 papers
astro-ph.CO2023★ 68 cited
Squeezed bispectrum and one-loop corrections in transient constant-roll inflation
Hayato Motohashi, Yuichiro Tada
In canonical single-field inflation, the production of primordial black holes (PBH) requires a transient violation of the slow-roll condition. The transient ultra slow-roll inflati…
hep-th2020★ 14 cited
Ghost from constraints: a generalization of Ostrogradsky theorem
Katsuki Aoki, Hayato Motohashi
Ostrogradsky theorem states that Hamiltonian is unbounded when Euler-Lagrange equations are higher than second-order differential equations under the nondegeneracy assumption. Sinc…