Canonical quantum gravity and effective theory

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Effective actions provide a powerful way to understand low-energy, semiclassical or other regimes of quantum field theories. Although canonical quantum gravity theories, such as loop quantum gravity, are not directly accessible to the usual techniques of computing effective actions, equivalent methods to derive an effective Hamiltonian and effective equations have recently been developed. This provides means to study the semiclassical limit of loop quantum gravity, demonstrating the correct approach to classical behavior and including quantum correction terms. Salient features of loop quantum gravity, its effective equations and applications in cosmological regimes are discussed.

Original languageEnglish (US)
Title of host publicationQuantum Field Theory
Subtitle of host publicationCompetitive Models
PublisherBirkhauser Verlag AG
Number of pages18
ISBN (Print)9783764387358
StatePublished - 2009
Event3rd Workshop on Recent Developments in Quantum Field Theory - Leipzig, Germany
Duration: Jul 20 2007Jul 22 2007

Publication series

NameQuantum Field Theory: Competitive Models


Other3rd Workshop on Recent Developments in Quantum Field Theory

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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