Loop quantum gravity corrections to gravitational wave dispersion

Martin Bojowald, Golam Mortuza Hossain

Research output: Contribution to journalArticle

101 Citations (Scopus)

Abstract

Cosmological tensor perturbations equations are derived for Hamiltonian cosmology based on Ashtekar's formulation of general relativity, including typical quantum gravity effects in the Hamiltonian constraint as they are expected from loop quantum gravity. This translates to corrections of the dispersion relation for gravitational waves. The main application here is the preservation of causality which is shown to be realized due to the absence of anomalies in the effective constraint algebra used.

Original languageEnglish (US)
Article number023508
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume77
Issue number2
DOIs
StatePublished - Jan 11 2008

Fingerprint

wave dispersion
Quantum Gravity
Gravitational Waves
gravitational waves
gravitation
Dispersion Relation
Causality
Cosmology
General Relativity
Preservation
cosmology
Anomaly
relativity
algebra
Tensor
tensors
anomalies
Perturbation
formulations
perturbation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Mathematical Physics

Cite this

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Loop quantum gravity corrections to gravitational wave dispersion. / Bojowald, Martin; Hossain, Golam Mortuza.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 77, No. 2, 023508, 11.01.2008.

Research output: Contribution to journalArticle

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