Generalized Assisted Inflation

Anupam Mazumdar; E. J. Copeland; N. J. Nunes

Generalized Assisted Inflation

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arxiv astro-ph/9904309 v1 pith:B7VR3KK6 submitted 1999-04-22 astro-ph gr-qchep-phhep-th

E. J. Copeland , Anupam Mazumdar , N. J. Nunes This is my paper · ORCID

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keywords assistedcosmologicalfieldsinflationsolutionsclasscross-couplingsdemonstrate

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We obtain a new class of exact cosmological solutions for multi-scalar fields with exponential potentials. We generalize the assisted inflation solutions previously obtained, and demonstrate how they are modified when there exist cross-couplings between the fields, such as occur in supergravity inspired cosmological models.

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Tilt and Tensor-to-Scalar Ratio in Multi-Scalar Field Inflation: Non-Sum-Separable Case
gr-qc 2024-12 reject novelty 3.0 of 10

A two-field chaotic inflation model with a kinetic-potential coupling can in principle lower ns and r, but the paper's analytic formulas miscompute the correction and its quoted parameter ranges are fitted rather than...

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