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• W3092116003 startingPage "100768" @default.
• W3092116003 abstract "In this work, we studied the slow-roll approximation of cosmic inflation within the context of $f(R,T)$ gravity, where $R$ is the scalar curvature, and $T$ is the trace of the energy-momentum tensor. By choosing a minimal coupling between matter and gravity, we obtained the modified slow-roll parameters, the scalar spectral index ($n_s$), the tensor spectral index ($n_{textrm{T}}$), and the tensor-to-scalar ratio ($r$). We computed these quantities for a general power-law potential, Natural & Quartic Hilltop inflation, and the Starobinsky model, plotting the trajectories on the $(n_s,r)$ plane. We found that one of the parameters of Natural/Hilltop models is non-trivially modified. Besides, if the coupling is in the interval $-0.5 < alpha < 5.54$, we concluded that the Starobinsky-like model predictions are in good agreement with the last Planck measurement, but with the advantage of allowing a wide range of admissible values for $r$ and $n_{textrm{T}}$." @default.
• W3092116003 created "2020-10-15" @default.
• W3092116003 creator A5043938993 @default.
• W3092116003 date "2021-01-01" @default.
• W3092116003 modified "2023-10-18" @default.
• W3092116003 title "Slow-roll inflation in <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline id=d1e758 altimg=si360.svg><mml:mrow><mml:mi>f</mml:mi><mml:mrow><mml:mo>(</mml:mo><mml:mi>R</mml:mi><mml:mo>,</mml:mo><mml:mi>T</mml:mi><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:math> gravity and a modified Starobinsky-like inflationary model" @default.
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• W3092116003 doi "https://doi.org/10.1016/j.dark.2020.100768" @default.
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