The Tachyon Inflationary Models with Exact Mode Functions

Abstract

We show two analytical solutions of the tachyon inflation for which the spectrum of curvature (density) perturbations can be calculated exactly to linear order, ignoring both gravity and the self-interactions of the tachyon field . The main feature of these solutions is that the spectral indices are independent with scale.

5 pages, no figure, to appear in Phys. Rev. D

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Cited by in corpus (24)

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• Holographic Cosmology 3.0
• Remarks on Tachyon Driven Cosmology
• Prospects of Inflation
• SD-brane gravity fields and rolling tachyons
• Hybrid Inflation and Brane-Antibrane System
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• Cosmologies with General Non-Canonical Scalar Field
• Preventing eternality in phantom inflation
• Reconstructing inflation in scalar-torsion $f(T,\varphi )$ gravity
• Tachyonic Inflation in a Warped String Background
• Cosmological perturbations and noncommutative tachyon inflation
• Reconstructing warm inflation
• Off-shell extension of S-matrix elements and tachyonic effective actions
• S-matrix elements and off-shell tachyon action with non-abelian gauge symmetry
• Dynamics of Quintessential Inflation
• Reconstructing G-inflation: From the attractors $n_S(N)$ and $r(N)$
• Reconstructing k-essence: Unifying the attractor $n_S(N)$ and the swampland criteria
• Brane tachyon dynamics
• Cosmology in Nonlinear Born-Infeld Scalar Field Theory With Negative Potentials
• Tachyon Vortex
• K-Inflation in Noncommutative Space-Time
• Particle Motion Around Tachyon Monopole