Observational effects from quantum cosmology


  • Gianluca Calcagni

    Corresponding author
    1. Instituto de Estructura de la Materia, IEM-CSIC, Madrid, Spain
    • Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Am Mühlenberg 1, Golm, Germany
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This article is corrected by:

  1. Errata: Observational effects from quantum cosmology Volume 525, Issue 10-11, A165, Article first published online: 24 September 2013

Corresponding author E-mail: calcagni@iem.cfmac.csic.es


The status of quantum cosmologies as testable models of the early universe is assessed in the context of inflation. While traditional Wheeler–DeWitt quantization is unable to produce sizable effects in the cosmic microwave background, the more recent loop quantum cosmology can generate potentially detectable departures from the standard cosmic spectrum. Thus, present observations constrain the parameter space of the model, which could be made falsifiable by near-future experiments.