Speaker
Anna Tokareva
(国科大杭州高等研究院)
Description
Preheating stage after inflation can cause a significant effect of graviton production. These gravitons at high frequencies can contribute to the dark radiation component which is constrained from CMB data. Gravitons at lower frequencies would produce an inevitable stochastic gravitational wave background which may be probed in future ground-based and space-based detectors. We show that out of equilibrium effects during reheating can enhance the graviton production.
Author
Anna Tokareva
(国科大杭州高等研究院)
