6 papers
Suppressed Intrinsic Curvature Gravity
Ido Ben-Dayan, Elena Emtsova
We consider various mechanisms of modifying the effect of intrinsic curvature in gravity with respect to General Relativity. Two primary approaches for suppressing intrinsic curvat…
Towards a Proof of the Improved Quantum Null Energy Condition
Ido Ben-Dayan, Ayushi Srivastava
The Improved Quantum Null Energy Condition (INEC) was recently derived from the (restricted) quantum focusing conjecture (QFC), and is a statement about the energy-momentum tensor…
Disentangling the Origins of the NANOGrav Signal: Early Universe Models and Bounds
Ido Ben-Dayan, Utkarsh Kumar, Amresh Verma
We investigate whether an Early-Universe stochastic gravitational-wave background (SGWB) can account for the common spectrum process reported by NANOGrav, while also being consiste…
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
Eleonora Di Valentino, Jackson Levi Said, Adam Riess +533
The standard model of cosmology has provided a good phenomenological description of a wide range of observations both at astrophysical and cosmological scales for several decades.…
Impact of Low ell's on Large Scale Structure Anomalies
Ido Ben-Dayan, Utkarsh Kumar, Meir Shimon +1
We scrutinize the reported lensing anomaly of the CMB by considering several phenomenological modifications of the lensing consistency parameter, . Considering Planck sp…
Islands in Bianchi type-I Universe
Ido Ben-Dayan, Merav Hadad, Ayushi Srivastava
We study the conditions for finding an island in an anisotropic universe - Bianchi Type-I filled with radiation. We verify that the existence of islands does not depend on their sh…