Remarks on high-energy stability and renormalizability of gravity theory

Details Remarks on high-energy stability and renormalizability of gravity theory Remarks on high-energy stability and renormalizability of gravity theory

Dec 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978phrvd..18.4480s&link_type=abstract

Physical Review D - Particles and Fields, 3rd Series, vol. 18, Dec. 15, 1978, p. 4480-4485.

Physics

60

Dynamic Stability, Gravitation Theory, Lagrange Multipliers, Momentum Theory, Quantum Mechanics, Field Theory (Physics), Ghosts, Normalizing, Tensors

Scientific paper

Proposals for renormalizing gravity are examined. In order to improve high-energy behavior, it is suggested that the Einstein Lagrangian (R) should be supplemented by higher-order Lagrangians containing terms of the type R(super-mu-nu)R(sub-mu-nu) and R-squared. Such Lagrangians have been shown to be renormalizable; however, they contain ghosts. Based on a renormalization-group investigation, criteria are suggested which, if satisfied, could make the ghosts innocuous.

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