Formation and evolution of structure in loop cosmology

Martin Bojowald, Mikhail Kagan, Parampreet Singh, Hector H. Hernández, Aureliano Skirzewski

Research output: Contribution to journalArticlepeer-review

48 Scopus citations

Abstract

Inhomogeneous cosmological perturbation equations are derived in loop quantum gravity, taking into account corrections, in particular, in gravitational parts. This provides a framework for calculating the evolution of modes in structure formation scenarios related to inflationary or bouncing models. Applications here are corrections to the Newton potential and to the evolution of large scale modes which imply nonconservation of curvature perturbations possibly noticeable in a running spectral index. These effects are sensitive to quantization procedures and test the characteristic behavior of correction terms derived from quantum gravity.

Original languageEnglish (US)
Article number031301
JournalPhysical review letters
Volume98
Issue number3
DOIs
StatePublished - 2007

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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