English

Holst Actions for Supergravity Theories

General Relativity and Quantum Cosmology 2008-11-26 v1 High Energy Physics - Theory

Abstract

Holst action containing Immirzi parameter for pure gravity is generalised to the supergravity theories. Supergravity equations of motion are not modified by such generalisations, thus preserving supersymmetry. Dependence on the Immirzi parameter does not emerge in the classical equations of motion. This is in contrast with the recent observation of Perez and Rovelli for gravity action containing original Holst term and a minimally coupled Dirac fermion where the classical equations of motion do develop a dependence on Immirzi parameter.

Cite

@article{arxiv.0711.4674,
  title  = {Holst Actions for Supergravity Theories},
  author = {Romesh K. Kaul},
  journal= {arXiv preprint arXiv:0711.4674},
  year   = {2008}
}

Comments

15 pages

R2 v1 2026-06-21T09:48:33.561Z