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Observational Constraints on Loop Quantum Cosmology

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 15 Nov 2011Embargo end date: 01 Jan 2011 English Publisher:American Physical Society (APS)Journal:Physical Review Letters, volume 107 (issn: 0031-9007, eissn: 1079-7114, Copyright policy )Funded by:NSF | CAREER: Effective Descrip...
Authors: Bojowald, M.; Calcagni, G.; Tsujikawa, S.;

doi: 10.1103/physrevlett.107.211302 , 10.48550/arxiv.1101.5391

pmid: 22181869

arXiv: 1101.5391

handle: 11858/00-001M-0000-0010-975B-E , 11858/00-001M-0000-0010-975A-0

Observational Constraints on Loop Quantum Cosmology

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.

4 pages, 3 figures. v2: introduction made less technical, improved datasets in the numerical analysis, typos corrected, references added; results and conclusions unchanged

Related Organizations
Keywords

High Energy Physics - Theory, High Energy Physics - Phenomenology, Cosmology and Nongalactic Astrophysics (astro-ph.CO), High Energy Physics - Phenomenology (hep-ph), High Energy Physics - Theory (hep-th), FOS: Physical sciences, General Relativity and Quantum Cosmology (gr-qc), General Relativity and Quantum Cosmology, Astrophysics - Cosmology and Nongalactic Astrophysics

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    		 91
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    		 Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
91
Top 10%
Top 10%
Top 1%
Green
hybrid