401 citations · 2.9k across the 56 of their papers we have counts for
6 papers · 1 filter
SYK Model in a Non-Gaussian disorder ensemble and emergent Coleman's mechanism
Ido Ben-Dayan, Pankaj Chaturvedi
We consider the case of the SYK model with non-gaussian disorder in the large limit. After obtaining the effective action, we derive the density of states and the free energy o…
The Quantum Focusing Conjecture and the Improved Energy Condition
Ido Ben-Dayan
By rearranging its terms, the Quantum Focusing Conjecture (QFC) can be viewed as a quantum energy condition, and we can consider various limits. A recent restricted version is a li…
Theoretical Priors and the Dark Energy Equation of State
Ido Ben-Dayan, Utkarsh Kumar
We revisit the theoretical priors used for inferring Dark Energy (DE) parameters. Any DE model must have some form of a tracker mechanism such that it behaved as matter or radiatio…
Requiem to "Proof of Inflation" or Sourced Fluctuations in a Non-Singular Bounce
Ido Ben-Dayan, Udaykrishna Thattarampilly
Popular wisdom suggests that measuring the tensor to scalar ratio on CMB scales is a "proof of inflation" since one generic prediction is a scale-invariant tensor spectrum whil…
Probing The Early Universe Cosmology With NANOGrav: Possibilities and Limitations
Ido Ben-Dayan, Utkarsh Kumar, Udaykrishna Thattarampilly +1
A stochastic gravitational wave background is a prediction of a number of astrophysical and cosmological phenomena including early Universe Cosmology. Recently, the NANOGrav Collab…
Emergent Unparticles Dark Energy can restore cosmological concordance
Ido Ben-Dayan, Utkarsh Kumar
Addressing the discrepancy between the late and early time measurements of the Hubble parameter, , and the so-called parameter has been a challenge in precision cosmolog…