14 citations · 24 across the 8 of their papers we have counts for
5 papers · 1 filter
Bispectrum at NLO in single field inflation: conservation and squeezed limit
Ignatios Antoniadis, Auttakit Chatrabhuti, Jules Cunat +1
In a recent paper, we computed the bispectrum of primordial density perturbations in CMB to second order in the slow-roll parameters of single field inflation, and found logarithmi…
New leading contributions to non-gaussianity in single field inflation
Ignatios Antoniadis, Auttakit Chatrabhuti, Jules Cunat +1
We compute the bispectrum of primordial density perturbations in CMB to second order in the slow-roll parameters of single field inflation. We correct previous results and found th…
Thin-wall vacuum decay in the presence of a compact dimension meets the and tensions
Luis A. Anchordoqui, Ignatios Antoniadis, Daniele Bielli +2
The proposal of a rapid sign-switching cosmological constant in the late universe, mirroring a transition from anti-de Sitter (AdS) to de Sitter (dS) space, has significantly impro…
Thin-wall vacuum decay in the presence of a compact dimension
Ignatios Antoniadis, Daniele Bielli, Auttakit Chatrabhuti +1
We study the problem of false vacuum decay in arbitrary dimensions, in the presence of gravity, and compute the transition probability within the thin-wall approximation, generalis…
Hybrid inflation from supersymmetry breaking
Yermek Aldabergenov, Ignatios Antoniadis, Auttakit Chatrabhuti +1
We extend a recently proposed framework, dubbed inflation by supersymmetry breaking, to hybrid inflation by introducing a waterfall field that allows to decouple the supersymmetry…