paper

Born-Infeld type Gravity

arXiv:gr-qc/0505088 · doi:10.1103/PhysRevD.72.064018

Abstract

Generalizations of gravitational Born-Infeld type lagrangians are investigated. Phenomenological constraints (reduction to Einstein-Hilbert action for small curvature, spin two ghost freedom and absence of Coulomb like Schwarschild singularity) select one effective lagrangian whose dynamics is dictated by the tensors g_{μν} and R_{μνρσ}(not R_{μν} or the scalar R).

7 pages, 3 figures, revtex

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