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Pramana

, Volume 5, Issue 1, pp 29–32 | Cite as

On energy-momentum tensors as sourcesof spin-2 fields

  • Eric A Lord
General Relativity
  • 30 Downloads

Abstract

The improvement terms in the generalised energy-momentum tensor of Callan, Coleman and Jackiw can be derived from a variational principle if the Lagrangian is generalised to describe coupling between ‘matter’ fields and a spin-2 boson field. The required Lorentz-invariant theory is a linearised version of Kibble-Sciama theory with an additional (generally-covariant) coupling term in the Lagrangian. The improved energy-momentum tensor appears as the source of the spin-2 field, if terms of second order in the coupling constant are neglected.

Keywords

Energy-momentum tensor Kibble-Sciama theory matter fields spin-2 fields 

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Copyright information

© Indian Academy of Sciences 1975

Authors and Affiliations

  • Eric A Lord
    • 1
  1. 1.Division of Physics and Mathematical SciencesIndian Institute of ScienceBangalore

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