Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1994-12-08
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
8 pp, LaTeX
Scientific paper
It is proven that the usual quadratic general-covariant Lagrangian for the
Dirac field leads to a symmetric, divergence-free energy-momentum tensor in the
standard Riemannian framework of space-time without torsion, provided the
tetrad field components are the only quantities related to gravitation that are
varied independently.
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