arXiv:gr-qc/0601108AbstractReferencesReviewsResources
Signatures of Planck-scale interactions in the cosmic microwave background?
Friedemann Queisser, Michael Uhlmann, Ralf Schützhold
Published 2006-01-25Version 1
Based on a rather general low-energy effective action (interacting quantum fields in classical curved space-times), we calculate potential signatures of new physics (such as quantum gravity) at ultra-high energies (presumably the Planck scale) in the anisotropies of the cosmic microwave background. These Planck-scale interactions create non-Gaussian contributions, where special emphasis is laid on the three-point function as the most promising observable, which also allows the discrimination between models violating and those obeying Lorentz invariance. PACS: 98.80.Cq, 04.62.+v, 98.70.Vc, 98.80.Qc.
Comments: 4 pages
Journal: Class.Quant.Grav.24:1375-1384,2007
Categories: gr-qc
Keywords: cosmic microwave background, signatures, planck-scale interactions create non-gaussian contributions, general low-energy effective action, quantum gravity
Tags: journal article
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