Immirzi parameter and Noether charges in first order gravity

Details Immirzi parameter and Noether charges in first order gravity Immirzi parameter and Noether charges in first order gravity

2011-11-03

arxiv.org/abs/1111.0961v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

17 pages, (new template, corrected typos), to appear in Proceedings of "Quantum Theory and Symmetries 7" Prague, Journal of Ph

Scientific paper

The framework of SO(3,2) constrained BF theory applied to gravity makes it possible to generalize formulas for gravitational diffeomorphic Noether charges (mass, angular momentum, and entropy). It extends Wald's approach to the case of first order gravity with a negative cosmological constant, the Holst modification and the topological terms (Nieh-Yan, Euler, and Pontryagin). Topological invariants play essential role contributing to the boundary terms in the regularization scheme for the asymptotically AdS spacetimes, so that the differentiability of the action is automatically secured. Intriguingly, it turns out that the black hole thermodynamics does not depend on the Immirzi parameter for the AdS-Schwarzschild, AdS-Kerr, and topological black holes, whereas a nontrivial modification appears for the AdS-Taub-NUT spacetime, where it impacts not only the entropy, but also the total mass.

Affiliated with

Also associated with

No associations

Rating

Immirzi parameter and Noether charges in first order gravity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Immirzi parameter and Noether charges in first order gravity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Immirzi parameter and Noether charges in first order gravity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-703480