Transplanckian signatures in WMAP3?

2006/06/20 by Ulf Danielsson, Ulf H. Danielsson, Danielsson, Ulf H. · 1 citation
Physics and Astronomy · #Astrophysics (astro-ph) #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Particle physics theoretical and experimental studies #astro-ph #hep-th

paper · pdf · doi:10.48550/arxiv.astro-ph/0606474

8 pages

arxiv created 2006/06/20 · openalex publication_date 2006/06/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this note we investigate how a possible signal in the WMAP3 data of rapid oscillations in the primordial spectrum can be accommodated into an effective model of transplanckian physics including back reaction. The results, if due to a real effect, would indicate the presence of a low fundamental scale -- possibly the string scale -- around 2.2⋅10^-5M_pl.

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• Constraining dark energy

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