http://arxiv.org/abs/1903.07487
We study the contribution to the primordial curvature perturbation on observational scales generated by the reheating field in massless preheating. To do so we use lattice simulations and a recent extension to the $\delta N$ formalism. The work demonstrates the functionality of these techniques for calculating the observational signatures of models in which non-perturbative reheating involves a light scalar field.
S. Imrith, D. Mulryne and A. Rajantie
Tue, 19 Mar 19
32/100
Comments: 7 pages, 3 figures