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Abstract <p>The presence of a tachyon field in <InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(R+\mu R^{2}\)</EquationSource> <!--GravCos2570040Khoeinimoghadd-m3--> </InlineEquation> theory is considered. Our analysis shows that the tachyon field contribution to the energy density is suppressed, but it affects cosmological parameters; in particular, the spectral index is modified. This model is in agreement with Panck2018 data for some parameter ranges.</p>

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Tachyon Inflation in \(\boldsymbol{R+R^{2}}\) Background

  • 期刊论文

  • 发表日期：

    2025年12月3日

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  • Salomeh Khoeini-Moghaddam

摘要

Abstract

The presence of a tachyon field in \(R+\mu R^{2}\) theory is considered. Our analysis shows that the tachyon field contribution to the energy density is suppressed, but it affects cosmological parameters; in particular, the spectral index is modified. This model is in agreement with Panck2018 data for some parameter ranges.