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 …
NANOGrav signal from axion inflation
Several pulsar timing arrays including NANOGrav, EPTA, PPTA, and CPTA have recently
reported the observation of a stochastic background of gravitational wave spectrum in the …
reported the observation of a stochastic background of gravitational wave spectrum in the …
Inflation: theory and observations
A Achúcarro, M Biagetti, M Braglia, G Cabass… - ar** multi-field inflation: non-Gaussianities from light scalars revisited
Primordial non-Gaussianities from multi-field inflation are a leading target for cosmological
observations, because of the possible large correlations generated between long and short …
observations, because of the possible large correlations generated between long and short …
Linking the singularities of cosmological correlators
A bstract Much of the structure of cosmological correlators is controlled by their singularities,
which in turn are fixed in terms of flat-space scattering amplitudes. An important challenge is …
which in turn are fixed in terms of flat-space scattering amplitudes. An important challenge is …
Cosmological bootstrap in slow motion
S Jazayeri, S Renaux-Petel - Journal of High Energy Physics, 2022 - Springer
A bstract Speed matters. How the masses and spins of new particles active during inflation
can be read off from the statistical properties of primordial density fluctuations is well …
can be read off from the statistical properties of primordial density fluctuations is well …
Helical inflation correlators: partial Mellin-Barnes and bootstrap equations
Z Qin, ZZ ** one-loop inflation correlators with the spectral decomposition
ZZ **anyu, H Zhang - Journal of High Energy Physics, 2023 - Springer
A bstract Phenomenological studies of cosmological collider physics in recent years have
identified many 1-loop inflation correlators as leading channels for discovering heavy new …
identified many 1-loop inflation correlators as leading channels for discovering heavy new …