Tachyon inflation in the holographic braneworld
Neven Bilic, Dragoljub D. Dimitrijevic, Goran S. Djordjevic, Milan, Milosevic, Marko Stojanovic
TL;DR
This paper proposes a tachyon inflation model within holographic cosmology, utilizing a D3-brane in an ADS$_5$ bulk, with analytical and numerical solutions that are compared to Planck 2018 data.
Contribution
It introduces a novel tachyon inflation model in holographic braneworld cosmology with analytical and numerical solutions aligned with observational data.
Findings
Analytical solutions in the slow-roll regime
Numerical solutions of exact equations
Compatibility with Planck 2018 data
Abstract
A model of tachyon inflation is proposed in the framework of holographic cosmology. The model is based on a holographic braneworld scenario with a D3-brane located at the holographic boundary of an asymptotic ADS bulk. The tachyon field that drives inflation is represented by a DBI action on the brane. We solve the evolution equations analytically in the slow-roll regime and solve the exact equations numerically. We calculate the inflation parameters and compare the results with Planck 2018 data.
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