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Dynamical structure of gravitational theories with GL(4,R) connections

Journal Article · · J. Math. Phys. (N.Y.); (United States)
DOI:https://doi.org/10.1063/1.526883· OSTI ID:5545927
We investigate here GL (4,R)-gauge theories of gravity based on variational principles. The components of tetrad fields e/sup()/sup ..cap alpha..//sub ..mu../, the components of metrics g/sub()() alphabeta/, and the components of connections GAMMA/sub lambda//sup()/sup ..cap alpha..//sub()/sub ..beta../ are taken as the gravitational potentials. Matter potentials are the components of GL (4,R)-tensor fields phi/sup ..sigma../. We derive the conservation laws for a general theory, that is, the Belinfante--Rosenfeld and Bianchi identities, and find minimal systems of independent variational equations. The natural GL (4,R)-covariant Hamiltonian formulation of the theory induces a GL (3,R)-covariant Hamiltonian formulation related to a chosen slicing of space-time. The Hamiltonian field equations corresponding to this formulation describe the dynamics of the system. We determine 20 symplectic constraints, 20 gauge transformations, and 20 gauge variables generic for a general gravitational Lagrangian. As an example, we consider the Gl (4,R)--Einstein theory in vacuum as well as in the presence of a vector field and find the complete canonical formulation in both cases.
Research Organization:
Institute of Theoretical Physics, Warsaw University, Hoza 69, 00-681 Warsaw, Poland
OSTI ID:
5545927
Journal Information:
J. Math. Phys. (N.Y.); (United States), Journal Name: J. Math. Phys. (N.Y.); (United States) Vol. 26:7; ISSN JMAPA
Country of Publication:
United States
Language:
English