TENTANG GELOMBANG GRAVITASI PRIMORDIAL; ABOUT PRIMORDIAL GRAVITATIONAL WAVES

Arandi, Tyas Al, M. Farchani Rosyid

2015 | Skripsi | FMIPA

Gravitational waves which comes from inflation, or usually called primordial gravitational waves, has been studied. Aspects of inflation that have been explained are shortcomings of the Big Bang Theory, mechanism of inflation, and fluctuation analysis of inflaton. Inflation is explained through slow-roll mechanism and is caused by scalar field called inflaton. The equation of motion of inflaton is none other than equation of motion of tensor perturbation that is studied using cosmological perturbation theory. Inflaton fluctuation generates primordial gravitational waves that can be observed through its parameters: tensor-to-scalar ratio r, scalar spectral tilt ns, and energy density ?GW.

Kata Kunci : inflation; primordial gravitational waves.