Deviation from Slow-Roll Regime in the EGB Inflationary Models with <i>r</i> ∼ <inline-formula><math display="inline"><semantics><mrow><msubsup><mi mathvariant="bold-italic">N</mi><mi mathvariant="bold-italic">e</mi><mrow><mo mathvariant="bold">−</mo><mn mathvariant="bold">1</mn></mrow></msubsup></mrow></semantics></math></inline-formula>
We consider Einstein–Gauss–Bonnet (EGB) inflationary models using the effective potential approach. We present evolution equations in the slow-roll regime using the effective potential and the tensor-to-scalar ratio. The choice of the effective potential is related to an expression of the spectral i...
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Format: | Article |
Language: | English |
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MDPI AG
2021-06-01
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Series: | Universe |
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Online Access: | https://www.mdpi.com/2218-1997/7/6/181 |