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Power-Law Inflation from the Rolling Tachyon

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arxiv hep-th/0204140 v2 pith:PT2D2HEP submitted 2002-04-17 hep-th gr-qc

Alexander Feinstein This is my paper · ORCID
classification hep-thgr-qc
keywords betaexactinflationpower-lawtachyonconstructexemplifiedfield
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abstract

Modeling the potential by an inverse square law in terms of the tachyon field ($V(T)=\beta T^{-2}$) we find exact solution for spatially flat isotropic universe.We show that for $\beta>2\sqrt{3}/3$ the model undergoes power-law inflation. A way to construct other exact solutions is specified and exemplified.

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  1. Power Law Plateau Inflation and Primary Gravitational Waves in the light of ACT

    astro-ph.CO 2025-07 conditional novelty 4.0 of 10

    Power-law plateau inflation can sit inside the 1 sigma region of ACT DR6, but the reheating bound from gravitational waves forces the total number of e-folds N_k below about 62.

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