GW170817-COMPATIBLE CONSTANT-ROLL PARAMETER ON EINSTEIN-GAUSS-BONNET INFLATION, MINIMAL, NON-MINIMAL, AND NON-MINIMAL DERIVATIVE COUPLINGS
In this research, we study the inflation theories of Einstein-Gauss-Bonnet, minimal, non-minimal, and non-minimal derivative coupling with the constant-roll condition. Given the gravitational wave event, GW170817, which produces a gravitational wave speed was nearly equal to the speed of light, w...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/57462 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | In this research, we study the inflation theories of Einstein-Gauss-Bonnet, minimal,
non-minimal, and non-minimal derivative coupling with the constant-roll condition.
Given the gravitational wave event, GW170817, which produces a gravitational wave
speed was nearly equal to the speed of light, we constrain that speed of the tensor perturbation
was nearly equal to unity, c2
T '1. We involve a scalar field potential whose its
function can be obtained from the equation of motion by designating the Gauss-Bonnet
coupling function. We use the linear and quadratic coupling function, which are their
simplest functions. The one result obtained are able to produce observed quantities
such as the spectral index for scalar perturbation, ns = 0:9642, the spectral index for
tensor perturbation, nT = ????5:247110????4, and tensor-to-scalar ratio, r = 0:0041,
which are compatible with the latest Planck data using slow-roll parameters obtained
analytically. |
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