Like electromagnetic waves propagating in the universe, gravitational waves (GWs) can be gravitationally lensed by massive objects between the distant source and the observer. Consequently, considering all known types of lensing configurations—governed by not only the relative position of the source to the lens but the size, shape, and distribution of the lens mass—is possible for the...
We study the effect of reheating phase on the evolution of complexities in the primordial scalar fluctuations using the squeezed formalism. We study the evolution of the out-of-time correlator (OTOC) and the quantum discord starting from the inflationary epoch till the radiation-dominated epoch with different types of reheating phases. We find that, for a mode that re-enters the horizon after...
