Observational viability of the intermediate DBI inflation in the presence of a minimal length

N Rashidi, M Roushan, K Nozari - Europhysics Letters, 2023 - iopscience.iop.org
We consider an intermediate Dirac-Born-Infeld (DBI) inflationary model in the presence of a
minimal measurable length in the theory. We show that the presence of a minimal …

Intermediate and Power-law Inflation in the Tachyon Model with Constant Sound Speed

N Rashidi - The Astrophysical Journal, 2022 - iopscience.iop.org
By adopting the intermediate and power-law scale factors, we study the tachyon inflation
with constant sound speed. We perform some numerical analysis on the perturbation and …

Viable anisotropic inflation and reheating in the tachyon model

N Rashidi - The European Physical Journal C, 2024 - Springer
We study the intermediate tachyon inflation in an anisotropic background. By using the
Friedmann equations obtained in the anisotropic geometry, we obtain the slow-roll …

[HTML][HTML] Viable intermediate inflation in the mimetic DBI model

N Rashidi, K Nozari - The European Physical Journal C, 2021 - Springer
We study the intermediate inflation in the mimetic Dirac–Born–Infeld model. By considering
the scale factor as\(a= a_ {0}\exp (bt^{\beta})\), we show that in some ranges of the …

Unified Lagrangian for Canonical and Non-Canonical Scalar Field

T Joshi, SD Pathak - arXiv preprint arXiv:2312.12079, 2023 - arxiv.org
We proposed a generalized Lagrangian for three different classes of scalar fields namely
quintessence ($\alpha=-1$), phantom ($\alpha= 0$), and tachyonic ($\alpha= 1$) …

Generalized Lagrangian for canonical and non-canonical scalar field

T Joshi, SD Pathak, M Khlopov - International Journal of …, 2024 - ui.adsabs.harvard.edu
In this paper, we proposed a generalized Lagrangian for three different classes of scalar
fields namely quintessence (α=− 1), phantom (α= 0) and tachyonic (α= 1) parameterized by …

Extended constant-roll condition in non-canonical scalar field inflation

F Mavoa, H Hova, S Houndjo, M Ganiou… - International Journal of …, 2023 - World Scientific
In this work, we apply the extended constant-roll condition to non-canonical scalar fields. We
use in particular two types of non-canonical fields, namely, the tachyon field and the Dirac …

Viable intermediate inflation in the mimetic DBI model

R Narges, N Kourosh - The European Physical Journal. C …, 2021 - search.proquest.com
We study the intermediate inflation in the mimetic Dirac–Born–Infeld model. By considering
the scale factor as a= a 0 exp (bt β), we show that in some ranges of the intermediate …

A tachyon field around the black hole

N Rashidi - International Journal of Modern Physics D, 2022 - World Scientific
In this paper, we study the effects of the presence of the tachyon field around the black hole.
We show that in presence of the tachyon field, unlike the ordinary canonical scalar field, the …