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arXiv · 1101.5391

Observational constraints on loop quantum cosmology

Martin Bojowald·Gianluca Calcagni·Shinji Tsujikawa
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Abstract

In the inflationary scenario of loop quantum cosmology in the presence of inverse-volume corrections, we give analytic formulas for the power spectra of scalar and tensor perturbations convenient to compare with observations. Since inverse-volume corrections can provide strong contributions to the running spectral indices, inclusion of terms higher than the second-order runnings in the power spectra is crucially important. Using the recent data of cosmic microwave background and other cosmological experiments, we place bounds on the quantum corrections.

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Martin Bojowald, Gianluca Calcagni, Shinji Tsujikawa. 2011-11-15. Observational constraints on loop quantum cosmology. https://doi.org/10.1103/physrevlett.107.211302

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