Tachyon inflation in teleparallel gravity
Abstract
We present a tachyonic field inflationary model in a teleparallel framework. We show that tachyonic coupled with the f(T) gravity model can describe the inflation era in which f(T) is an arbitrary function of torsion scalar T. For this purpose, dynamical behavior of the tachyonic field in different potentials is studied, it is shown that the tachyonic field with these potentials can be an effective candidate for inflation. Then, we discuss slow-roll conditions and show that by the appropriate choice of the parameters, the inflation era can be explained via this model. Finally, we argue that our model not only satisfies the result of BICEP2, Keck Array and Plank for the upper limit of
- Publication:
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European Physical Journal C
- Pub Date:
- April 2019
- DOI:
- 10.1140/epjc/s10052-019-6819-z
- arXiv:
- arXiv:1812.06649
- Bibcode:
- 2019EPJC...79..366R
- Keywords:
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- General Relativity and Quantum Cosmology;
- High Energy Physics - Theory
- E-Print:
- 15 pages, 5 figures