Do We Have Evidence for New Physics in the Sky?

Abstract

Predicting signatures of string theory on cosmological observables is not sufficient. Often the observable effects string theory may impact upon the cosmological arena may equally be predicted by features of inflationary physics. The question: what observable signatures are unique to new physics, is thus of crucial importance for claiming evidence for the theory. Here we discuss recent progress in addressing the above question. The evidence relies on identifying discrepancies between the source terms that give rise to large scale structure (LSS) and CMB, by cross-correlating the weak lensing potential maps LSS with the CMB spectra.

Invited Review to appear in MPLA. Based on work done with Steen Hannestad

References in corpus (5)

• The 2dF Galaxy Redshift Survey: Final Data Release
• Measuring Dark Energy Clustering with CMB-Galaxy Correlations
• Can we predict $\Lambda$ for the Non-SUSY sector of the Landscape ?
• A First Glimpse of String Theory in the Sky?
• The Cosmic Microwave Background and Inflation Parameters

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• Spin Correlations in $e^{+}{e}^{-}$ Pair Creation by Two-Photons and Entanglement in QED
• Evidence for a photon mass
• Adding flavor on the Higgs branch