Phys. Rev. D 72, 064018 (2005) [8 pages]Born-Infeld-type gravityReceived 7 June 2005; published 26 September 2005 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 gμν and Rμνρσ (not Rμν or the scalar R). © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.72.064018
DOI:
10.1103/PhysRevD.72.064018
PACS:
04.50.+h, 04.70.Bw, 11.25.Mj
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