Features and new physical scales in primordial observables: theory and observation
All cosmological observations to date are consistent with adiabatic, Gaussian and nearly
scale invariant initial conditions. These findings provide strong evidence for a particular …
scale invariant initial conditions. These findings provide strong evidence for a particular …
Amplitudes meet cosmology: A (scalar) primer
P Benincasa - International Journal of Modern Physics A, 2022 - World Scientific
Here, we review the most recent progress in our understanding of quantum mechanical
observables in cosmology in the perturbative regime. It relies on an approach that considers …
observables in cosmology in the perturbative regime. It relies on an approach that considers …
Snowmass white paper: the cosmological bootstrap
This white paper summarizes recent progress in the cosmological bootstrap, an approach to
the study of the statistics of primordial fluctuations from consistency with unitarity, locality and …
the study of the statistics of primordial fluctuations from consistency with unitarity, locality and …
Quantum loop effects on the power spectrum and constraints on primordial black holes
We present a detailed exposition on the prospects of the formation of Primordial Black Holes
(PBHs) during Slow Roll (SR) to Ultra Slow Roll (USR) sharp transitions in the framework of …
(PBHs) during Slow Roll (SR) to Ultra Slow Roll (USR) sharp transitions in the framework of …
Squeezed bispectrum and one-loop corrections in transient constant-roll inflation
H Motohashi, Y Tada - Journal of Cosmology and Astroparticle …, 2023 - iopscience.iop.org
In canonical single-field inflation, the production of primordial black holes (PBH) requires a
transient violation of the slow-roll condition. The transient ultra slow-roll inflation is an …
transient violation of the slow-roll condition. The transient ultra slow-roll inflation is an …
Galileon inflation evades the no-go for PBH formation in the single-field framework
We consider Galileon inflation in the Effective Field Theory (EFT) framework and examine
the possibility for PBH formation during slow roll (SR) to ultra slow roll (USR) transitions. We …
the possibility for PBH formation during slow roll (SR) to ultra slow roll (USR) transitions. We …
No-go for the formation of heavy mass Primordial Black Holes in Single Field Inflation
We examine the possibility of Primordial Black Holes (PBHs) formation in single field models
of inflation. Using the adiabatic or wave function renormalization scheme in the short range …
of inflation. Using the adiabatic or wave function renormalization scheme in the short range …
The cosmological optical theorem
H Goodhew, S Jazayeri, E Pajer - Journal of Cosmology and …, 2021 - iopscience.iop.org
The unitarity of time evolution, or colloquially the conservation of probability, sits at the heart
of our descriptions of fundamental interactions via quantum field theory. The implications of …
of our descriptions of fundamental interactions via quantum field theory. The implications of …
Cosmological cutting rules
S Melville, E Pajer - Journal of High Energy Physics, 2021 - Springer
A bstract Primordial perturbations in our universe are believed to have a quantum origin,
and can be described by the wavefunction of the universe (or equivalently, cosmological …
and can be described by the wavefunction of the universe (or equivalently, cosmological …
The effective field theory of cosmological large scale structures
JJM Carrasco, MP Hertzberg, L Senatore - Journal of High Energy Physics, 2012 - Springer
A bstract Large scale structure surveys will likely become the next leading cosmological
probe. In our universe, matter perturbations are large on short distances and small at long …
probe. In our universe, matter perturbations are large on short distances and small at long …