Observational constraints on loop quantum cosmology

Details Observational constraints on loop quantum cosmology Observational constraints on loop quantum cosmology

2011-01-27

arxiv.org/abs/1101.5391v2

Phys. Rev. Lett. 107, 211302 (2011)

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages, 3 figures. v2: introduction made less technical, improved datasets in the numerical analysis, typos corrected, refere

Scientific paper

10.1103/PhysRevLett.107.211302

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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