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Media type:
E-Article
Title:
COVARIANT GRAVITY WITH LAGRANGE MULTIPLIER CONSTRAINT
Contributor:
NOJIRI, SHIN'ICHI
Published:
World Scientific Pub Co Pte Lt, 2012
Published in:
International Journal of Modern Physics: Conference Series, 14 (2012), Seite 450-459
Language:
English
DOI:
10.1142/s201019451200757x
ISSN:
2010-1945
Origination:
Footnote:
Description:
We review on the models of gravity with a constraint by the Lagrange multiplier field. The constraint breaks general covariance or Lorentz symmetry in the ultraviolet region. We report on the F(R) gravity model with the constraint and the proposal of the covariant (power-counting) renormalized gravity model by using the constraint and scalar projectors. We will show that the model admits flat space solution, its gauge-fixing formulation is fully developed, and the only propagating mode is (higher derivative) graviton, while scalar and vector modes do not propagate. The preliminary study of FRW cosmology indicates to the possibility of inflationary universe solution is also given.