From the 1 of 7 linked papers with an AI index.
7 papers
Beyond monomial -attractors
Laura Iacconi
The paper investigates inflationary α‑attractor models with a binomial (quadratic + quartic) potential, showing that the quartic term can significantly modify the scalar spectral i…
UV artefacts in ultra-slow-roll models of inflation
Gerald Barnert, Laura Iacconi, Hooshyar Assadullahi +2
Within single-field inflation, primordial black hole and scalar-induced gravitational wave production from enhanced primordial perturbations typically requires a transient non-attr…
Primordial black holes from inflation: on the decoupling between large and small scales
Laura Iacconi
Primordial black holes (PBHs) can be produced from inflation if the primordial curvature power spectrum is strongly enhanced on scales much shorter than those probed by cosmic micr…
Decoupling of large-scale, adiabatic inflationary perturbations from enhanced small-scale modes at one-loop
Laura Iacconi, David Mulryne, David Seery
We reconsider back-reaction from large amplitude, short-scale perturbations onto a long wavelength adiabatic mode. In a loop expansion of the long-mode power spectrum, this back-re…
Closing in on -attractors
Laura Iacconi, Sukannya Bhattacharya, Matteo Fasiello +1
Recent observations of cosmic microwave background (CMB) anisotropies combined with large-scale structure may point towards higher values of the scalar spectral index, . This…
Testing inflation on all scales: a case study with -attractors
Laura Iacconi, Michael Bacchi, Luiz Filipe Guimarães +1
A plethora of inflationary models can produce interesting small-scale phenomenology, such as enhanced scalar fluctuations leading to primordial black hole (PBH) production and larg…