Cosmological constant in spinfoam cosmology

Eugenio Bianchi, Thomas Krajewski, Carlo Rovelli, Francesca Vidotto

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

We consider a simple modification of the amplitude defining the dynamics of loop quantum gravity, corresponding to the introduction of the cosmological constant, and possibly related to the SL(2,C)q extension of the theory recently considered by Fairbairn-Meusburger and Han. We show that, in the context of spinfoam cosmology, this modification yields the de Sitter cosmological solution.

Original languageEnglish (US)
Article number104015
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume83
Issue number10
DOIs
StatePublished - May 5 2011

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cosmology
gravitation

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Bianchi, Eugenio ; Krajewski, Thomas ; Rovelli, Carlo ; Vidotto, Francesca. / Cosmological constant in spinfoam cosmology. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 2011 ; Vol. 83, No. 10.
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Cosmological constant in spinfoam cosmology. / Bianchi, Eugenio; Krajewski, Thomas; Rovelli, Carlo; Vidotto, Francesca.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 83, No. 10, 104015, 05.05.2011.

Research output: Contribution to journalArticle

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