Induced gravitational waves in general backgrounds
2019-12-19
14:00
UB
Aula 507 (Pere Pascual, ICCUB building, UB Campus)
Gravitational waves are unavoidably generated at second order in cosmological perturbation theory. In some cases, such induced gravitational waves might be observable by future space-based gravitational waves detectors.
However, only the generation during radiation and matter domination eras has been analytically studied. I will present new analytical formulas for general cosmological background and I will discuss its detectability and its applications to the primordial black hole scenario.