361 citations · 2k across the 31 of their papers we have counts for
3 papers · 1 filter
Stability of Geodesically Complete Cosmologies
Paolo Creminelli, David Pirtskhalava, Luca Santoni +1
We study the stability of spatially flat FRW solutions which are geodesically complete, i.e. for which one can follow null (graviton) geodesics both in the past and in the future w…
Semiclassics, Goldstone Bosons and CFT data
Alexander Monin, David Pirtskhalava, Riccardo Rattazzi +1
Hellerman et al. (arXiv:1505.01537) have shown that in a generic CFT the spectrum of operators carrying a large U(1) charge can be analyzed semiclassically in an expansion in inver…
Relaxing the Cosmological Constant: a Proof of Concept
Lasma Alberte, Paolo Creminelli, Andrei Khmelnitsky +2
We propose a technically natural scenario whereby an initially large cosmological constant (c.c.) is relaxed down to the observed value due to the dynamics of a scalar evolving on…