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New Sources of Gravitational Waves during Inflation

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arxiv 1109.0542 v2 pith:4VFU6Z56 submitted 2011-09-02 hep-th astro-ph.COgr-qc

Leonardo Senatore , Eva Silverstein , Matias Zaldarriaga This is my paper · ORCID
classification hep-thastro-ph.COgr-qc
keywords inflationinflationaryduringfluctuationsmodessourcestensorautomatically
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We point out that detectable inflationary tensor modes can be generated by particle or string sources produced during inflation, consistently with the requirements for inflation and constraints from scalar fluctuations. We show via examples that this effect can dominate over the contribution from quantum fluctuations of the metric, occurring even when the inflationary potential energy is too low to produce a comparable signal. Thus a detection of tensor modes from inflation does not automatically constitute a determination of the inflationary Hubble scale.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Preheating Axions in String Cosmology

    hep-th 2024-11 conditional novelty 6.0 of 10

    Preheating of closed-string axions in fibre inflation can overproduce dark matter, yielding new upper bounds on the axion mass and constraints on model parameters.

  2. Noncanonical Approaches To Inflation

    gr-qc 2019-06 unverdicted novelty 3.0 of 10

    A review thesis covering Mukhanov parametrization, general scalar-tensor theories, and new slow-roll techniques for canonical and noncanonical inflation observables.

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