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Inflationary trispectrum from graviton exchange
David Seery, Martin S. Sloth, Filippo Vernizzi
We compute the connected four-point correlation function of the primordial curvature perturbation generated during inflation with standard kinetic terms, where the correlation is e…
Observing trans-Planckian ripples in the primordial power spectrum with future large scale structure probes
Jan Hamann, Steen Hannestad, Martin S. Sloth +1
We revisit the issue of ripples in the primordial power spectra caused by trans-Planckian physics, and the potential for their detection by future cosmological probes. We find that…
On Resumming Inflationary Perturbations beyond One-loop
Antonio Riotto, Martin S. Sloth
It is well known that the correlation functions of a scalar field in a quasi-de Sitter space exhibit at the loop level cumulative infra-red effects proportional to the total number…