Minimally modified self-dual 2-forms gravity

Details Minimally modified self-dual 2-forms gravity Minimally modified self-dual 2-forms gravity

2010-04-19

arxiv.org/abs/1004.3324v2

Class.Quant.Grav.27:145011,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Corrected typos

Scientific paper

10.1088/0264-9381/27/14/145011

The first order Plebanski formulation of (complex) general relativity (GR) in terms of self-dual 2-forms admits a generalization, proposed by Krasnov, that is qualitatively different from other possible generalizations of GR in terms of metric variables. In this paper, we investigate, within a minimal modification, and in a perturbative approach, the geometrical meaning of the field variables used in the Krasnov generalization, and compare them to the field variables used in the Plebanski formulation.

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