Probing the reheating temperature of the universe with a gravitational wave background
Probing the reheating temperature of the universe with a gravitational wave background
The thermal history of the universe after big bang nucleosynthesis (BBN) is well understood both theoretically and observationally, and recent cosmological observations also begin to reveal the inflationary dynamics. However, the epoch between inflation and BBN is scarcely known. In this paper we show that the detection of the stochastic …