401 citations · 2.9k across the 56 of their papers we have counts for
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On Soft Limits of Large-Scale Structure Correlation Functions
Ido Ben-Dayan, Thomas Konstandin, Rafael A. Porto +1
We study soft limits of correlation functions for the density and velocity fields in the theory of structure formation. First, we re-derive the (resummed) consistency conditions at…
Lensing dispersion of SNIa and small scales of the primordial power spectrum
Ido Ben-Dayan
Probing the primordial power spectrum at small scales is crucial for discerning inflationary models, especially if BICEP2 results are confirmed. We demonstrate this necessity by br…
Towards Natural Inflation in String Theory
Ido Ben-Dayan, Francisco G. Pedro, Alexander Westphal
We provide type IIB string embeddings of two axion variants of natural inflation. We use a combination of RR 2 form axions as the inflaton field and have its potential generated by…
quantum corrections and the inflationary observables
Ido Ben-Dayan, Shenglin Jing, Mahdi Torabian +2
We study a model of inflation with terms quadratic and logarithmic in the Ricci scalar, where the gravitational action is . These terms are expected to aris…
Hierarchical Axion Inflation
Ido Ben-Dayan, Francisco Gil Pedro, Alexander Westphal
We propose a new field theory mechanism for generating an effective trans-Planckian decay constant from sub-Planckian ones. Using the minimal two axions and a hierarchy between two…
The value of H_0 in the inhomogeneous Universe
Ido Ben-Dayan, Ruth Durrer, Giovanni Marozzi +1
Local measurements of the Hubble expansion rate are affected by structures like galaxy clusters or voids. Here we present a fully relativistic treatment of this effect, studying ho…