pith. sign in

arxiv: 0902.0957 · v2 · submitted 2009-02-05 · 🌀 gr-qc · hep-th

Barbero-Immirzi field in canonical formalism of pure gravity

Gianluca Calcagni , Simone Mercuri This is my paper
classification 🌀 gr-qc hep-th
keywords canonicalfieldbarbero-immirzicoupledgravitytheoryactionanalysis
0
0 comments X
read the original abstract

The Barbero-Immirzi (BI) parameter is promoted to a field and a canonical analysis is performed when it is coupled with a Nieh-Yan topological invariant. It is shown that, in the effective theory, the BI field is a canonical pseudoscalar minimally coupled with gravity. This framework is argued to be more natural than the one of the usual Holst action. Potential consequences in relation with inflation and the quantum theory are briefly discussed.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Natural Metric-Affine Inflation: Reloaded

    gr-qc 2026-05 unverdicted novelty 5.0

    Combining periodic non-minimal couplings to the Nieh-Yan term and Ricci scalar in metric-affine gravity makes natural inflation viable for sub-Planckian periodicity scales.