Belinfante Tensors Induced by Matter-Gravity Couplings

Details Belinfante Tensors Induced by Matter-Gravity Couplings Belinfante Tensors Induced by Matter-Gravity Couplings

2002-01-08

arxiv.org/abs/hep-th/0201043v3

Phys.Rev. D65 (2002) 125022

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, LaTex; misprints corrected, references added; to appear in Physical Review D

Scientific paper

10.1103/PhysRevD.65.125022

We show that any generally covariant coupling of matter fields to gravity gives rise to a conserved, on-shell symmetric energy-momentum tensor equivalent to the canonical energy-momentum tensor of the flat-space theory. For matter fields minimally coupled to gravity our algorithm gives the conventional Belinfante tensor. We establish that different matter-gravity couplings give metric energy-momentum tensors differing by identically conserved tensors. We prove that the metric energy-momentum tensor obtained from an arbitrary gravity theory is on-shell equivalent to the canonical energy-momentum tensor of the flat-space theory.

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