Lord, Eric A (1975) On energy-momentum tensors as sources of spin-2 fields. In: Pramana, 5 (1). pp. 29-32.
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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.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Indian Academy of Sciences.|
|Keywords:||Energy-momentum tensor;Kibble-Sciama theory;matter fields;spin-2 fields.|
|Department/Centre:||Division of Physical & Mathematical Sciences|
|Date Deposited:||23 Jan 2010 04:21|
|Last Modified:||19 Sep 2010 05:48|
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